function showImage(url, w, h)
{
	isOpen  = false;
	win = window.open(url, 'imagePreview', 'toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width='+w+',height='+h);
	return ((typeof(win)=='object') ? true : false);
}

function targetWin(url)
{
	isOpen  = false;
	win = window.open(url);
	return ((typeof(win)=='object') ? true : false);
}