form_validate = function()
{
	valid = true;
	
	var oForm = document.forms["contact"];
	var oSubject = oForm.subject.value;
	var oName = oForm.name.value;
	var oNumber = oForm.number.value;
	var oEmail = oForm.email.value;
	var oMessage = oForm.message.value;

	var alertMsg = "<h4>Please check the following fields</h4><ul>\n";
	
	var l_Msg = alertMsg.length;
	
	if (oSubject == '')
	{
		alertMsg += "<li>Please fill in a subject</li>\n";
		valid = false;
	}
	
	if (oName == '')
	{
		alertMsg += "<li>Please fill in your name</li>\n";
		valid = false;
	}	

	if (oNumber == '')
	{
		alertMsg += "<li>Please fill a contact number</li>\n";
		valid = false;
	}

	if (oEmail == '')
	{
		alertMsg += "<li>Please fill in your email address</li>\n";
		valid = false;
	}
	
	if (oEmail != '')
	{
		var re = /^[^\s()<>@,;:\/]+@\w[\w\.-]+\.[a-z]{2,}$/i
		var email_test = re.test(oEmail)
		if (email_test != true)
		{
			alertMsg += "<li>Please enter a valid email address</li>\n";
			valid = false;
		}
	}	
	
	if (oMessage == '' )
	{
		alertMsg += " <li>Please enter your message</li>\n";
		valid = false;
	}	

	
	if (alertMsg.length == l_Msg)
	{
		return true;	
	}
	else 
	{
		document.getElementById('error').innerHTML = alertMsg + "</ul>"
		/*alert(alertMsg);*/
		return false;
	}
		return valid;
}