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