/**
* Basic popup window
*/
function popup(URL,id,scrolling,width,height) 
{
	var left = (screen.width - width) / 2;
	var top = (screen.height - height) / 2;
	pic = window.open('' + URL + '', '' + id + '', 'toolbar=0,scrollbars=' + scrolling +',location=0,statusbar=1,menubar=0,resizable=0,width=' + width + ',height=' + height + ',top=' + top + ', left=' + left);
}