function checkClosed(){

if((window.screenTop>10000)&& (window.screenLeft > 10000)){

var flash= "/content_data/LAAM/CO/es/GBPCO/microsite/chevrolet/trailblazer/popup_grand_vitara.htm";

window.open(flash,'PopUp','width=300,height=250,left=180,top=150,resizeable=yes,status=no');

}
}
function onClose(){

window.onunload=checkClosed;
}