/**
* +--------------------------------------------------------------------+
* | This MySource Matrix CMS file is Copyright (c) Squiz Pty Ltd       |
* | ACN 084 670 600                                                    |
* +--------------------------------------------------------------------+
* | IMPORTANT: Your use of this Software is subject to the terms of    |
* | the Licence provided in the file licence.txt. If you cannot find   |
* | this file please contact Squiz (www.squiz.net) so we may provide   |
* | you a copy.                                                        |
* +--------------------------------------------------------------------+
*
* $Id: js_calendar.js,v 1.14 2007-06-14 22:48:39 colivar Exp $
*
*/

/**
* Constructor of the calendar object
*
* @param    varname name of the object variable (for internal links)
* @param    divname name of the target DIV or TD or other parent HTML object
* @param    width   width of the calendar [optional]
* @param    height  height of the calendar [optional]
* @param    year    initial year [optional]
* @param    month   initial month [optional]
* @param    day initial day [optional]
*
* @author   Dmitry Baranovskiy  <dbaranovskiy@squiz.net>
* @author   Dianne Castillo <dcastillo@squiz.net>
*
* @return object
* @access public
*/
function Calendar(varname, divname, width, height, year, month, day)
{
    this.width = (typeof(width) == "undefined")?"100%":width;
    this.height = (typeof(height) == "undefined")?"100%":height;
    var dt = new Date();
    this.selday = (typeof(day) == "undefined")?dt.getDate():day;
    this.month = (typeof(month) == "undefined")?dt.getMonth():month - 1;
    this.year = (typeof(year) == "undefined")?dt.getFullYear():year;
    this.initMonth  = this.month;
    this.initYear   = this.year;
    this.prefix = "";
    this.varname = varname;
    this.divname = divname;
    this.week_start = 1;
    this.mon_names = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
    this.day_names = new Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
    this.day_name_length = 2;
    this.popup = false;         //is the cal popup
    this.imageURL = null;       //URL of image if it popup
    this.fadeit = true;         //fade cal on show or not
    this.scrollit = true;       //if fadeit == false scroll cal on show

    this.first_time = true;
    this.time = null;
    this.fade = 0;
    this.scroll = 0;

    this.output = c_output;
    this.draw   = c_draw;
    this.show   = c_show;
    this.hide   = c_hide;
    this.setYear    = c_setYear;
    this.setMonth   = c_setMonth;
    this.setDay = c_setDay;
    this.setDate    = c_setDate;
    this.today  = c_today;
    this.fadeOn = c_fadeOn;
    this.fadeOff    = c_fadeOff;
    this.scrollOn   = c_scrollOn;
    this.scrollOff  = c_scrollOff;

    this.dayClick   = c_dayClick;
    this.weekClick  = c_weekClick;
    this.monthClick = c_monthClick;
    this.yearClick  = c_yearClick;

    this.dayMouseOver = c_dayMouseOver;
    this.dayMouseOut = c_dayMouseOut;

    this.eventList = null;
    this.isEventListReady = false;

    this.onDayClick = null;
    this.onWeekClick = null;
    this.onMonthClick = null;
    this.onYearClick = null;

    this.onDayMouseOver = null;
    this.onDayMouseOut = null;

    this.onBeforeSetDay = null;
    this.onAfterSetDay = null;
    this.onBeforeSetMonth = null;
    this.onAfterSetMonth = null;
    this.onBeforeSetYear = null;
    this.onAfterSetYear = null;

    this.onBeforeDraw = null;
    this.onAfterDraw = null;

}//end Calendar()


/**
* Pop up calendar in the setted DIV
*
* @param    e   event [should be called as "cal.show(event);"]
*
* @return
* @access public
*/
function c_show(e)
{
    this.popup = true;
    var div = document.getElementById(this.divname);
    div.style.visibility = "hidden";
    div.style.position = "absolute";

    var coordX = 0;
    var coordY = 0;
    if (navigator.userAgent.indexOf("Safari") != -1) {
        // safari
        coordX = e.clientX - 305;// - (top.innerWidth - self.innerWidth);
        coordY = top.innerHeight - e.clientY;
    } else {
        if (e.pageX || e.pageY) {
            coordX = e.pageX;
            coordY = e.pageY;
        } else if (e.clientX || e.clientY) {
            coordX = e.clientX + document.body.scrollLeft;
            coordY = e.clientY + document.body.scrollTop;
        }
    }

    // move the div to the top level of the document tree so that other absolutely-positioned
    // elements don't affect its position, then move it to the correct co-ordinates
    div.parentNode.removeChild(div);
    document.body.appendChild(div);
    div.style.left = (coordX + 6) + "px";
    div.style.top  = (coordY + 6) + "px";
    div.style.zIndex = 99999;
    div.style.background = 'white';
    div.innerHTML = this.output();

    if (document.getElementById('ie_'+this.divname+'_iframe') == null && (typeof document.body.insertAdjacentHTML != 'undefined')) {
        var shadow = '<span id="ie_'+this.divname+'_shadow" style="background:#000000;position:absolute;top:0px;left:0px;filter:progid:DXImageTransform.Microsoft.blur(pixelradius=6, enabled=\'true\', makeshadow=\'true\', ShadowOpacity=0.7)"></span>';
        var iframe = '<iframe id="ie_'+this.divname+'_iframe" scrolling="no" border="0" frameborder="0" style="filter:alpha(opacity=0);position:absolute;top:-1000px;left:-1000px;width:10px; height:10px;visibility:hidden;z-index:9999" src="about:blank"></iframe>' + shadow + div.outerHTML;
        document.body.insertAdjacentHTML('beforeEnd', iframe);
        div.id = this.divname + "_old";
        div.innerHTML = "";

        div = document.getElementById(this.divname);
    }
    if ((typeof document.body.insertAdjacentHTML != 'undefined')) {
        var cal_top    = document.getElementById(this.divname).style.top;
        var cal_height = document.getElementById(this.divname).offsetHeight;
        var cal_width  = document.getElementById(this.divname).offsetWidth;
        var cal_left   = document.getElementById(this.divname).style.left;
        var iframe = document.getElementById('ie_'+this.divname+'_iframe');
        var shadow = document.getElementById('ie_'+this.divname+'_shadow');
        iframe.style.top    = cal_top;
        iframe.style.left   = cal_left;
        iframe.style.width  = cal_width + "px";
        iframe.style.height = cal_height + "px";
        iframe.style.visibility = "visible";
        shadow.style.top    = cal_top.substring(0, cal_top.length - 2) - 2 + "px";
        shadow.style.left   = cal_left.substring(0, cal_left.length - 2) - 6 + "px";
        shadow.style.width  = cal_width + "px";
        shadow.style.height = cal_height + "px";
        iframe.style.zIndex     = 3000;
        if (this.fadeit || this.scrollit) shadow.style.visibility   = "hidden";
        else shadow.style.visibility    = "visible";
    }
    if (this.fadeit) {
        this.fade = 0;
        this.fadeOn();
    } else if (this.scrollit) {
        this.scroll = 0;
        this.scrollOn();
    }
    div.style.visibility = "visible";

}//end c_show()


/**
* Hide pop up calendar in the setted DIV
*
*
* @return
* @access public
*/
function c_hide()
{
    this.popup = true;
    var div = document.getElementById(this.divname);
    if (this.fadeit) {
        this.fade = 0;
        this.fadeOff();
    } else
    if (this.scrollit) {
        this.scroll = 96;
        this.scrollOff();
    } else div.style.visibility = "hidden";
    if (document.body.insertAdjacentHTML){
        if (!this.fadeit && !this.scrollit) document.getElementById('ie_'+this.divname+'_iframe').style.visibility = "hidden";
        document.getElementById('ie_'+this.divname+'_shadow').style.visibility = "hidden";
    }

}//end c_hide()


/**
* ScrollOn the calendar
*
*
* @return
* @access public
*/
function c_scrollOn()
{
    clearTimeout(this.time);
    var div = document.getElementById(this.divname);
    div.style.visibility = "visible";
    var cal_height = div.offsetHeight;
    var cal_width  = div.offsetWidth;
    if (this.scroll >= 100) {
        this.time = null;
        div.style.clip =  "rect(0px, "+cal_width+"px, "+cal_height+"px, 0px)";
        if (document.body.insertAdjacentHTML){
            document.getElementById('ie_'+this.divname+'_iframe').style.visibility = "visible";
            document.getElementById('ie_'+this.divname+'_shadow').style.visibility = "visible";
        }
        return;
    }
    div.style.clip =  "rect(0px, "+(this.scroll*cal_width/100)+"px, "+(this.scroll*cal_height/100)+"px, 0px)";
    this.scroll+=4;
    this.time = setTimeout(this.varname+".scrollOn()",1);
}//end c_scrollOn()


/**
* ScrollOff the calendar
*
*
* @access public
*/
function c_scrollOff()
{
    clearTimeout(this.time);
    var div = document.getElementById(this.divname);
    var cal_height = div.offsetHeight;
    var cal_width  = div.offsetWidth;
    if (this.scroll <= 0) {
        this.time = null;
        div.style.visibility = "hidden";
        if (document.body.insertAdjacentHTML){
            document.getElementById('ie_'+this.divname+'_iframe').style.visibility = "hidden";
            document.getElementById('ie_'+this.divname+'_shadow').style.visibility = "hidden";
        }
        return;
    }
    div.style.clip =  "rect(0px, "+(this.scroll*cal_width/100)+"px, "+(this.scroll*cal_height/100)+"px, 0px)";
    this.scroll-=4;
    this.time = setTimeout(this.varname+".scrollOff()",1);
}//end c_scrollOff()


/**
* Fade calendar from not transparent to transparent
*
*
* @access public
*/
function c_fadeOn()
{
    clearTimeout(this.time);
    var div = document.getElementById(this.divname);
    div.style.visibility = "visible";
    if (this.fade >= 100) {
        this.time = null;
        div.style.MozOpacity = 0.99;
        div.style.filter= 'alpha(opacity=99)';
        if (document.body.insertAdjacentHTML){
            document.getElementById('ie_'+this.divname+'_iframe').style.visibility = "visible";
            document.getElementById('ie_'+this.divname+'_shadow').style.visibility = "visible";
        }
        return;
    }
    div.style.MozOpacity = this.fade/100;
    div.style.filter= 'alpha(opacity=' + this.fade + ')';
    this.fade+=4;
    this.time = setTimeout(this.varname+".fadeOn()",1);

}//end c_fadeOn()


/**
* Fade calendar from transparent to not
*
*
* @access public
*/
function c_fadeOff()
{
    clearTimeout(this.time);
    var div = document.getElementById(this.divname);
    if (this.fade <= 0) {
        this.time = null;
        div.style.visibility = "hidden";
        if (document.body.insertAdjacentHTML){
            document.getElementById('ie_'+this.divname+'_iframe').style.visibility = "hidden";
            document.getElementById('ie_'+this.divname+'_shadow').style.visibility = "hidden";
        }
        return;
    }
    div.style.MozOpacity = this.fade/100;
    div.style.filter= 'alpha(opacity=' + this.fade + ')';
    this.fade-=4;
    this.time = setTimeout(this.varname+".fadeOff()",1);

}//end c_fadeOff()


/**
* Draws calendar in the setted DIV
*
* @param
*
* @return
* @access public
*/
function c_draw()
{
    // Pre-event
    if (this.onBeforeDraw != null) {
        this.onBeforeDraw(parseInt(this.selday), this.month + 1, parseInt(this.year), this.first_time);
    }

    // Render the calendar
    var output = "";
    if (!this.popup || !this.first_time) {
        document.getElementById(this.divname).innerHTML = this.output();
    }
    else {
        if (this.imageURL != null) {
            output = '<img src="' + this.imageURL + '" style="cursor:pointer" onclick="'+this.varname+'.show(event);">';
        }
        else {
            output = '<div style="width:20px;height:20px;background:#CCCCCC;border:solid 1px #DDDDDD;cursor:pointer" onclick="'+this.varname+'.show(event);"';
        }
    }

    if (this.popup && this.first_time) document.write(output);

    this.first_time = false;

    // Post-event
    if (this.onAfterDraw != null) {
        this.onAfterDraw(parseInt(this.selday), this.month + 1, parseInt(this.year));
    }

}//end c_draw()


/**
* Moves calendar to today
*
*
* @access public
*/
function c_today()
{
    dt = new Date();
    this.month  = dt.getMonth();
    this.year   = dt.getFullYear();
    this.selday = dt.getDate();
    this.draw();

}//end c_today()


/**
* Change Year of the Calendar
*
* @param    year    new year
*
* @return void
* @access public
*/
function c_setYear(year)
{

    // Pre-event
    if (this.onBeforeSetYear != null) {
        this.onBeforeSetYear(parseInt(this.selday), this.month + 1, parseInt(this.year));
    }

    // Set the calendar year
    if (year == "--") this.year--;
    else    if (year == "++") this.year++;
        else this.year = year;
    this.draw();

    // Post-event
    if (this.onAfterSetYear != null) {
        this.onAfterSetYear(parseInt(this.selday), this.month + 1, parseInt(this.year));
    }

}//end c_setYear()


/**
* Change Month of the Calendar
*
* @param    mon new month (0..11)
*
* @return void
* @access public
*/
function c_setMonth(mon)
{

    // Pre-event
    if (this.onBeforeSetMonth != null) {
        this.onBeforeSetMonth(parseInt(this.selday), this.month + 1, parseInt(this.year));
    }

    // Set the calendar month
    if (mon == "--") this.month--;
    else    if (mon == "++") this.month++;
        else this.month = mon - 1;
    if (this.month > 11)
    {
        this.month -= 12;
        this.year++;
    }
    if (this.month < 0)
    {
        this.month += 12;
        this.year--;
    }
    this.draw();

    // Post-event
    if (this.onAfterSetMonth != null) {
        this.onAfterSetMonth(parseInt(this.selday), this.month + 1, parseInt(this.year));
    }

}//end c_setMonth()


/**
* Change day of the calendar
*
* @param    day new day
*
* @return void
* @access public
*/
function c_setDay(day)
{
    // Pre-event
    if (this.onBeforeSetDay != null) {
        this.onBeforeSetDay(parseInt(this.selday), this.month + 1, parseInt(this.year));
    }

    // Set the calendar day
    this.selday = day;
    var td_day = document.getElementById(this.varname + "_td_" + day);
    if (td_day != null) td_day.style.background = this.sel_day_bg;

    // Post-event
    if (this.onAfterSetDay != null) {
        this.onAfterSetDay(parseInt(this.selday), this.month + 1, parseInt(this.year));
    }

}//end c_setDay()


/**
* Generates output string for internal use
*
*
* @return string [HTML]
* @access public
*/
function c_output()
{
    var dt = new Date();
    var td = new Date();
    dt.setDate(1);
    dt.setMonth(this.month);
    dt.setYear(this.year);

    var is_week_set  = this.onWeekClick  != null;
    var is_day_set   = this.onDayClick   != null;
    var is_month_set = this.onMonthClick != null;
    var is_year_set  = this.onYearClick  != null;

    if (is_week_set) colspan = 6;
    else colspan = 5;

    //table definition
    var output = '<table class="cal" cellspacing="1" width="' + this.width + '" height="' + this.height + '">';

    //top bar for popup
    if (this.popup) output += '<tr style="height:1px"><td colspan="' + (colspan + 2) + '" align="right"><span class="cal_close" onclick="' + this.varname +'.hide();">&times;</span></td></tr>';


    //month caption
    output += '<tr style="height:1px"><td class="cal_arrow" onclick="' + this.varname +
        '.setMonth(\'--\')" align="left">&laquo;</td><td class="cal_month" colspan="' + colspan + '" align="center" onclick="' +
        this.varname + '.monthClick(1,' + (this.month + 1) + ',' + this.year + ')">' +
        this.mon_names[this.month] + '</td><td class="cal_arrow" onclick="' + this.varname +
        '.setMonth(\'++\')" align="right">&raquo;</td></tr>';
    //year caption
    output += '<tr style="height:1px"><td class="cal_arrow" onclick="' + this.varname +
        '.setYear(\'--\')" align="left">&laquo;</td><td class="cal_year" colspan="' + colspan + '" align="center" onclick="' +
        this.varname + '.yearClick(1,1,' + this.year + ')">' +
        this.year + '</td><td class="cal_arrow" onclick="' + this.varname +
        '.setYear(\'++\')" align="right">&raquo;</td></tr>';
    //week days
    output += '<tr style="height:1px">';
    if (is_week_set) output += '<td class="cal_week">&nbsp;</td>';
    var j = this.week_start;
    var end_day = (this.week_start == 0)?6:this.week_start - 1;
    while (j != end_day)
    {
        output +='<td class="cal_week_day">' + this.day_names[j].substring(0,this.day_name_length) + '</td>';
        j++;
        if (j == 7) j = 0;
    }
    output +='<td class="cal_week_day">' + this.day_names[j].substring(0,this.day_name_length) + '</td>';
    output += '</tr>';

    //previous month days
    var day = dt.getDay();
    var j = this.week_start;
    output += '<tr id="' + this.varname + '_tr_0">';
    if (is_week_set) output += '<td class="cal_week" onmouseout="document.getElementById(\'' + this.varname + '_tr_0\').className=\'\'" onmouseover="document.getElementById(\'' + this.varname + '_tr_0\').className=\'cal_ovr\'" onclick="' + this.varname + '.weekClick(1,' + (dt.getMonth()+1) + ',' + dt.getFullYear() + ')">&raquo;</td>';

    var diff = 1 + (j - day);
    if (day < j) diff = 1 + (j - day - 7);
    dt.setDate(diff);

    while (j != day && (diff <= 0))
    {
        output += '<td class="cal_empty" onmouseover="this.className=\'cal_ovr\'" onmouseout="this.className=\'cal_empty\'" onclick="' + this.varname + '.dayClick(' + dt.getDate() + ',' + (dt.getMonth()+1) + ',' + dt.getFullYear() + ')">' + dt.getDate() + '</td>';
        dt.setDate(dt.getDate() + 1);
        j++;
        if (j == 7) j = 0;
    }

    //general month days
    dt.setMonth(this.month);
    dt.setYear(this.year);
    dt.setDate(1);

    j = 1;
    while (dt.getMonth() == this.month)
    {
        if (dt.getDay() == this.week_start && day != this.week_start)
        {
            output += '</tr><tr id="' + this.varname + '_tr_' + j + '">';
            if (is_week_set) {
                output  += '<td class="cal_week" '
                        + 'onmouseout="document.getElementById(\'' + this.varname + '_tr_' + j + '\').className=\'\'" '
                        + 'onmouseover="document.getElementById(\'' + this.varname + '_tr_' + j + '\').className=\'cal_ovr\'" '
                        + 'onclick="' + this.varname + '.weekClick(' + dt.getDate() + ',' + (dt.getMonth()+1) + ',' + dt.getFullYear() + ')">'
                        + '&raquo;'
                        + '</td>';
            }
            j++;
            if (j == 7) {
                j = 0;
            }
        }

        if (dt.getDay() == 0 || dt.getDay() == 6) {
            clss = "cal_hol";
        }
        else {
            clss = "cal_day";
        }

        if (dt.getDate() == this.selday
        && dt.getMonth() == this.initMonth
        && dt.getFullYear() == this.initYear) {
            clss += "_sel";
        }
        else if (dt.getFullYear() == td.getFullYear()
        && dt.getMonth() == td.getMonth()
        && dt.getDate() == td.getDate()) {
            clss = "cal_today";
        }

        cellDay = dt.getDate();
        cellMonth = dt.getMonth() + 1;
        cellYear = dt.getYear();
        cellID = this.varname + '_td_' + cellDay;
        output  += '<td id="' + cellID + '" '
                + 'class="' + clss + '" '
                + 'onmouseover="' + this.varname + '.dayMouseOver(' + cellDay + ', ' + cellMonth + ', ' + cellYear + ', \'' + cellID + '\')" '
                + 'onmouseout="' + this.varname + '.dayMouseOut(' + cellDay + ', ' + cellMonth + ', ' + cellYear + ', \'' + cellID + '\', \'' + clss + '\')" '
                + 'onclick="' + this.varname + '.dayClick(' + cellDay + ',' + cellMonth + ',' + cellYear + ')">'
                + cellDay
                + '</td>';

        dt.setDate(dt.getDate() + 1);
        day = this.week_start + 1;

    }

    //next month days
    dt.setDate(dt.getDate() - 1);
    j = dt.getDay();
    dt.setDate(dt.getDate() + 1);
    var endday = (this.week_start == 0)?6:this.week_start - 1;
    while (j != endday)
    {
        output += '<td class="cal_empty" onmouseover="this.className=\'cal_ovr\'" onmouseout="this.className=\'cal_empty\'" onclick="' + this.varname + '.dayClick(' + dt.getDate() + ',' + (dt.getMonth()+1) + ',' + dt.getFullYear() + ')">' + dt.getDate() + '</td>';
        dt.setDate(dt.getDate() + 1);
        j++;
        if (j == 7) j = 0;
    }
    output += '</tr></table>';
    return output;

}//end c_output()


/**
* click on the date event handler
*
* @param    day selected day
* @param    mon selected month
* @param    year    selected year
*
* @return void
* @access public
*/
function c_dayClick(day, mon, year)
{
    if (this.onDayClick != null)
    {
        this.onDayClick(day, mon, year, this.prefix);
        if (this.popup) this.hide();
    }

}//end c_dayClick()


/**
* click on the month event handler
*
* @param    day selected day
* @param    mon selected month
* @param    year    selected year
*
* @return void
* @access public
*/
function c_monthClick(day, mon, year)
{
    if (this.onMonthClick != null)
    {
        this.onMonthClick(day, mon, year, this.prefix);
        if (this.popup) this.hide();
    }

}//end c_monthClick()


/**
* click on the week event handler
*
* @param    day selected day
* @param    mon selected month
* @param    year    selected year
*
* @return void
* @access public
*/
function c_weekClick(day, mon, year)
{
    if (this.onWeekClick != null)
    {
        this.onWeekClick(day, mon, year, this.prefix);
        if (this.popup) this.hide();
    }

}//end c_weekClick()


/**
* click on the year event handler
*
* @param    day selected day
* @param    mon selected month
* @param    year    selected year
*
* @return void
* @access public
*/
function c_yearClick(day, mon, year)
{
    if (this.onYearClick != null)
    {
        this.onYearClick(day, mon, year, this.prefix);
        if (this.popup) this.hide();
    }

}//end c_yearClick()


/**
 * Event handler for Day mouseOver event
 *
 * @param    integer     day         Selected day.
 * @param    integer     mon         Selected month.
 * @param    integer     year        Selected year.
 * @param    string      elementID   ID of the selected element.
 *
 * @return void
 * @access public
 */
function c_dayMouseOver(day, mon, year, elementID)
{
    // Get the actual element
    var selectedElement = document.getElementById(elementID);
    // Execute user-defined mouseOver event
    if (this.onDayMouseOver != null)
    {
        this.onDayMouseOver(day, mon, year, elementID);
    }
    // Execute default event
    else {
        selectedElement.className = 'cal_ovr';
    }
}//end c_dayMouseOver()


/**
 * Event handler for Day mouseOut event
 *
 * @param    integer     day             Selected day.
 * @param    integer     mon             Selected month.
 * @param    integer     year            Selected year.
 * @param    object      elementID       ID of the selected element.
 * @param    string      elementClass    The class to revert the element to.
 *
 * @return void
 * @access public
 */
function c_dayMouseOut(day, mon, year, elementID, elementClass)
{
    // Get the actual element
    var selectedElement = document.getElementById(elementID);
    // Execute user-defined mouseOut event
    if (this.onDayMouseOut != null)
    {
        this.onDayMouseOut(day, mon, year, elementID, elementClass);
    }
    // Execute default event
    else {
        selectedElement.className = elementClass;
    }
}//end c_dayMouseOut()


/**
* Converts date to MYSQL format
*
* @param    day given day
* @param    mon given month
* @param    year    given year
*
* @return string
* @access public
*/
function DateConvert2MySQL(day, mon, year)
{
    var out = year + "-";
    if (mon < 10) out += "0";
    out += mon + "-";
    if (day < 10) out += "0";
    out += day;
    return out;

}//end DateConvert2MySQL()


/**
* Sets data for Calendar. Could use first param as MySQL format string
*
* @param    year    given year OR MySQL-format complete date
* @param    mon     given month
* @param    day     given day
*
* @return void
* @access public
*/
function c_setDate(year, mon, day)
{
    if (typeof(year) == "string")
    {
        this.year   = year.substring(0, 4) * 1;
        this.month  = year.substring(5, 7) * 1 - 1;
        this.selday = year.substring(8) * 1;
    }
    else
    {
        this.year   = year;
        this.month  = month;
        this.selday = day;
    }
    this.draw();

}//end c_setDate()


/**
* Add func to body onload event
*
* @param    func_name   func call string [init()]
*
* @return void
* @access public
*/
function attachOnLoad(func_name)
{
    var onload = document.body.getAttribute("onload") + ";" + func_name;
    if (document.body.onload)
    {
        var onload_old = document.body.onload;
        function onload_new()
        {
            onload_old();
            eval(func_name+";");
        }
        document.body.onload = onload_new;
    }
    else document.body.setAttribute("onload", onload)

}//end attachOnLoad()


/**
* Perform a frame-sensitive redirect by respecting any <base> tags in the document
*
* @access public
* @return void
*/
function frameRedirect(url)
{
    basetags = document.getElementsByTagName('base');
    if (basetags.length != 0) {
        switch (basetags[0].target) {
            case '_parent':
                window.parent.location = url;
              break;
            case '_top':
                window.top.location = url;
                break;
            case '_self':
                document.location.href = url;
                break;
            case '_blank':
                window.open(url, 'new', '');
                break;
            default:
                window.top.frames[basetags[0].target].location = url;
        }
    } else {
        document.location.href = url;
    }

}//end frameRedirect()

function addStyle(css)
{
    var myStyle = document.createElement('STYLE');
    document.getElementsByTagName('HEAD')[0].appendChild(myStyle);
    if (null == myStyle.canHaveChildren || myStyle.canHaveChildren) {
        var styleContent = document.createTextNode(css);
        myStyle.appendChild(styleContent);
    } else {
        myStyle.styleSheet.cssText = css;
    }
}