var newWin = null;

function popUp(strURL, strType, strWidth, strHeight) {
	if (newWin != null && !newWin.closed) 
		newWin.close(); 
	var strOptions=""; 
	if (strType=="console") 
		strOptions = "resizable,scrollbars,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();
}