var newWin = null;

function closeWin(){

	if (newWin != null){
		
		if(!newWin.closed)
		newWin.close();
	}
}

function popup(strURL,strType,strHeight,strWidth) {
	
	closeWin();
	var strOptions="";
	if (strType == "console") strOptions = "resizable,height=" + strHeight + ",width=" + strWidth ;
	if (strType == "fixed") strOptions = "status,height=" + strHeight + ",width=" + strWidth ;
	if (strType == "elastic") strOptions = "toolbar,menubar,scrollbars,resizable,location,height=" + strHeight + ",width=" + strWidth ;
	newWin = window.open(strURL, 'newWin', strOptions);
	newWin.focus();
}