var preloadFlag = false;

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
		document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

function imgSwap(imgName,opt)
{

	var rawID = opt.id;
	var strID = rawID.substring(3,rawID.indexOf("_"));

	// check id in arry to see of it can be substituted
	// my array...

	// tell the image by name to swap
	changeImages(imgName, '/images/clothing/'+strID+'.jpg');

}

function itemQuanCheck(f,a)
{
	maxQuan = parseInt(a[f.item.selectedIndex]);
	reqQuan = f.op2.value;
	
	if(isNaN(reqQuan))
	{
		alert("Quantity must be a number!");
		f.op2.style.backgroundColor="#ffff66";
		f.op2.focus();
		return false;
	}else{
		f.op2.style.backgroundColor="#ffffff";
	}
	
	if(!isNaN(maxQuan) && reqQuan <= maxQuan)
	{
		// we're good to go
		return true;
	}
	else if(!isNaN(maxQuan) && reqQuan > maxQuan)
	{
		alert("You have requested a quantity that is greater than we have on hand. \n\nClosest value substituted.");
		f.op2.value = maxQuan;
//		f.op2.style.backgroundColor="#ff6";
		return false;
	}
}