var lastPopUpWindow = null;

function pop (sCase){
	// close the last pop-up.
	try {
		//lastPopUpWindow.close ();
	} catch(e) {}
	
	switch (sCase){
		case "careers" :
			//lastPopUpWindow = window.open('careers/careers.html','_blank','width=774,height=503');
			window.open('careers/careers.html');
		break;
		
	}
}