function openWindow(url) {
	var w = 500;
	var h = 500;
	var winName = w+h;
	var Width   = 'width='   + w;
	var Height  = ',height=' + h;
	var Left    = ',left=20';
	var Top     = ',top=20';
	var Option = ',status=0,menubar=0,scrollbars=1,resizable=1';
	var features = Width + Height + Left + Top + Option;
	winName = window.open(url,winName,features);
	if (window.focus) {
		winName.focus();
	}
}