function popUp(getFile){
	
	setWidth = 400;
	setHeight = 240;

     	setLeft = (screen.width - setWidth) / 2;
     	setTop = (screen.height - setHeight) / 2;

	setWindow = 'top=' + setTop + ', left=' + setLeft + ', toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=' + setWidth + ',height='+ setHeight; 

	MyPopupWindow = window.open(getFile, 'MyPopupWindow', setWindow);
	
}
function checkWindow(){

	if (window.name != "MyPopupWindow"){
		self.location.href = "popup1.html";
	}else{
		window.focus();
	}
	
	
}