function formCheckContact(formobj) {
	// Enter name of mandatory fields
	var fieldRequired = Array("name", "email", "message");

	// Enter field description to appear in the dialog box
	var fieldDescription = Array("Name", "E-mail", "Message");

	// dialog message
	var alertMsg = "Please complete required fields:\n";
	
	var l_Msg = alertMsg.length;
	
	for (var i = 0; i < fieldRequired.length; i++) {
		var obj = formobj.elements[fieldRequired[i]];
		if (obj) {
			switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == "") {
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "select-multiple":
				if (obj.selectedIndex == -1) {
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "text":
			case "textarea":
				if (obj.value == "" || obj.value == null || obj.value =="http://") {
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			default:
			}
			if (obj.type == undefined) {
				var blnchecked = false;
				for (var j = 0; j < obj.length; j++) {
					if (obj[j].checked) {
						blnchecked = true;
					}
				}
				if (!blnchecked){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
			}
		}
	}

	if (alertMsg.length == l_Msg) {
		return true;
	} else {
		alert(alertMsg);
		return false;
	}
}

/* email validation */
function validate_email(field,alerttxt) {
	with (field) {
		apos = value.indexOf("@")
		dotpos = value.lastIndexOf(".")
		if (apos<1 || dotpos-apos<2) {
			alert(alerttxt);
			return false;
		} else {
			return true;
		}
	}
}

function validate_form(thisform) {
	with (thisform) {
		if (validate_email(email, "Not a valid e-mail address!") == false) {
			email.focus();
			email.style.border = '1px solid red';
			return false;
		}
	}
}