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

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


function popupwindow(url, w){
   var w = parseInt(w) + 20;	
   var h = '650';
   var winl = (screen.width - w) / 2;
   var wint = (screen.height - h) / 2; 
   var winprops ='height=' + h +',width= ' + w + ',top=' + wint + ',left=' + winl + ',scrollbars=yes,resizable=yes,menubars=0,location=0,toolbars=0, statusbars=0';
   var url = url;
   var win = window.open(url,'',winprops);
}


function popupxy(url, w, h){
   var winl = (screen.width - w) / 2;
   var wint = (screen.height - h) / 2; 
   var winprops ='height=' + h +',width= ' + w + ',top=' + wint + ',left=' + winl + ',scrollbars=no,resizable=no,menubars=0,location=0,toolbars=0, statusbars=0';
   var url = url;
   var win = window.open(url,'',winprops);
}