var displayWindow = null;
function itemWindow(strUrl,w,h) { 
	if (displayWindow && displayWindow.open && !displayWindow.closed) {
		//alert("window open2");
		displayWindow.close();
	}
	displayWindow = window.open(strUrl, 'itemWin', 'resizable=1,WIDTH='+w+',HEIGHT='+h); 
	displayWindow.focus();
	return false;
}