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];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		over = newImage("---.gif");
		down = newImage("---.gif");
		preloadFlag = true;
	}
}

function smallwindow(url)
{
window.open(url,"small","width=680,height=400,scrollbars=yes,location=no,menubar=no,left=10,top=30");
}


function subwindow(url)
{
window.open(url,"sub","width=540,height=400,scrollbars=yes,resizable=no,location=no,menubar=yes,left=10,top=30");
}


function openwindow(url)
{
window.open(url,"small","width=650,height=400,scrollbars=yes,location=no,menubar=yes,left=10,top=30");
}