function PopNewWindow(Url,Name,Width,Height)
{
	var _width = Width;
	var _height = Height;
	var _top = (window.screen.availHeight-_height)/2;
	var _left = (window.screen.availWidth-_width)/2;
	var _options = "location=0,toolbar=0,status=1,menubar=0,scrollbars=1,resizable=1,width="+_width+",height="+_height+",top="+_top+",left="+_left;
	var _newwindow = window.open(Url,Name,_options);
	_newwindow.focus();
}