function popUp(URL) {
	var w = 445;
	var h = 445;
	var winl = (screen.width-w)/2;
	var wint = (screen.height-h)/2;
	var settings  ='height='+h+',width='+w+',top='+wint+',left='+winl+',';
  
	window.open(URL, 'mapPopup', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=1,resizable=0,'+settings);
}