function no_error()
{ return true; }
window.onerror=no_error;


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) {
		top_22_over = newImage("images/top_22-over.gif");
		top_23_over = newImage("images/top_23-over.gif");
		top_24_over = newImage("images/top_24-over.gif");
		top_25_over = newImage("images/top_25-over.gif");
		top_26_over = newImage("images/top_26-over.gif");
		top_27_over = newImage("images/top_27-over.gif");
		preloadFlag = true;
	}
}

	function openPopUp(url,target,attributes) 
	{
		popup = window.open(url,target,attributes);
		popup.moveTo((window.screen.availWidth -  750) / 2, (window.screen.availHeight - 600) / 2);//c
								}