//** Dynamic Drive Equal Columns Height script v1.01 (Nov 2nd, 06)
//** http://www.dynamicdrive.com/style/blog/entry/css-equal-columns-height-script/

var ddequalcolumns=new Object()
//Input IDs (id attr) of columns to equalize. Script will check if each corresponding column actually exists:
ddequalcolumns.columnswatch=["leftcolumn", "rightcolumn", "contentwrapper"]

ddequalcolumns.setHeights=function(reset)
{
    var tallest=0
    var resetit=(typeof reset=="string")? true : false
    for (var i=0; i<this.columnswatch.length; i++){
        if (document.getElementById(this.columnswatch[i])!=null)
        {
            if (resetit)
                document.getElementById(this.columnswatch[i]).style.height="auto"
            if (document.getElementById(this.columnswatch[i]).offsetHeight>tallest)
                tallest=document.getElementById(this.columnswatch[i]).offsetHeight
        }
    }
    if (tallest>0)
    {
        for (var i=0; i<this.columnswatch.length; i++)
        {
            if (document.getElementById(this.columnswatch[i])!=null)
                document.getElementById(this.columnswatch[i]).style.height=tallest+"px"
        }
    }
}

ddequalcolumns.resetHeights=function()
{
    this.setHeights("reset")
}

ddequalcolumns.dotask=function(target, functionref, tasktype)
{ 
    //assign a function to execute to an event handler (ie: onunload)
    var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
    if (target.addEventListener)
        target.addEventListener(tasktype, functionref, false)
    else if (target.attachEvent)
        target.attachEvent(tasktype, functionref)
}

ddequalcolumns.dotask(window, function(){ddequalcolumns.setHeights()}, "load")
ddequalcolumns.dotask(window, function(){if (typeof ddequalcolumns.timer!="undefined") clearTimeout(ddequalcolumns.timer); ddequalcolumns.timer=setTimeout("ddequalcolumns.resetHeights()", 200)}, "resize")