if (document.all) {
        coll="all.";
        coll2="";
        styleObj=".style";
}
else if (document.layers) {
        coll="";
        coll2="";
        styleObj="";
}
else if (document.getElementById) {
        coll="getElementById('";
        coll2="')";
        styleObj="').style";
} 

function preloader(arr, dir)
{
var imageArr = new Array();
for(i=0; i<arr.length; i++)
{
imageArr[i] = new Image();
imageArr[i].src = dir + arr[i] + ".gif";
}
}

function Roll(thingy, path)
{
var imgobj = eval("document." + coll + thingy + coll2);
imgobj.src = path;		
}

function childWin(url,windowname,wdth,hgt) {
	var popup = window.open(url,windowname,"toolbar=no,status=yes,scrollbars=yes,menubar=no,locationbar=no,top=100,left=200,height=" + hgt + ",width=" + wdth + ",resizable=no");
	popup.focus();
}