// How to call:
// equalCols(["Column_Id_1", "Column_Id_2", "Column_Id_3", "Column_Id_n"])
function equalCols(colIds)
{
	var ddequalcolumns=new Object()
	ddequalcolumns.columnswatch=colIds

	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){
	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")
}