function openWindow (url, winName, w, h, properties) { 
    properties = properties || "resizable"
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings =
	'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+','+ properties;
	newWindow = window.open(url,winName,settings);
	if(url.indexOf("://") == -1) newWindow.focus();
	top.newWindow = true;
}

function checkOrderForm() {
	var form = document.orderform;
	if(form != null) {
		for(var i=0; i<form.elements.length; i++) {
			if((form.elements[i].value == null)||(form.elements[i].value == "")) {
				alert("Пожалуйста, заполните все поля");
				return(false);
			}
		}
	}
	return(true);
}