//** 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", "centercolumn", "container"]
ddequalcolumns.getClientHeight = function(){
    var applHeight = 0;
    if( typeof( window.innerWidth ) == 'number' ) {
        applHeight = window.innerHeight;//Non-IE
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        applHeight = document.documentElement.clientHeight;//IE 6+ in 'standards compliant mode'
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        applHeight = document.body.clientHeight;//IE 4 compatible
    }
    return applHeight-250;
}
ddequalcolumns.setHeights=function(reset){
    var tallest=ddequalcolumns.getClientHeight();
    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")
    //this.setHeights(null);
}

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")