function openWindow ( url, height, width )
{
    var clientWidth = !width ? document.documentElement.clientWidth * .7 : width;
    var clientHeight = !height ? document.documentElement.clientHeight * .7 : height;

	WinCom = window.open(url, null, 'height=' + clientHeight + ',width=' + clientWidth + ',status=no,toolbar=no,menubar=no,location=no,resizable=no');
	window.WinCom.focus();
    return false;
}