function validateMailform() {
	var form = document.getElementById('mailform');
	if(form.subject != undefined && form.subject.selectedIndex == 0) {
		//alert(dialog_subject);
		//form.subject.focus();
	}
	else if(form.name != undefined && form.name.value.length == 0) {
		alert(dialog_name);
		form.name.focus();
	}
	else if(form.phone != undefined && isNaN(form.phone.value.replace("-","").replace(" ",""))) {
		//alert(dialog_phone);
		//form.phone.focus();
	}
	else if(form.url != undefined && form.url.value.length == 0) {
		alert(dialog_url);
		form.url.focus();
	}
	else if(form.email != undefined && form.email.value.search(/^[\w-_\.]*[\w-_\.]\@[\w\.]*\.+[\w]{2,4}$/gi)) {
		alert(dialog_email);
		form.email.focus();
	}
	else if(form.message != undefined && form.message.value.length < 10) {
		alert(dialog_inquiry);
		form.message.focus();
	}
	else
		form.submit();
}