function validate_contact()
{
	
	if (document.ContactForm.Name.value == null || document.ContactForm.Name.value == '')
	{
		alert('Name field cannot be blank');
		document.ContactForm.Name.focus();
		return false;
	}
	
	else if (document.ContactForm.Telephone.value == null || document.ContactForm.Telephone.value == '')
	{
		alert('Telephone field cannot be blank');
		document.ContactForm.Telephone.focus();
		return false;
	}
		
	else if (document.ContactForm.EmailName.value == null || document.ContactForm.EmailName.value == '')
	{
		alert('email cannot be blank');
		document.ContactForm.EmailName.focus();
		return false;
	}	
	
	else if (document.ContactForm.EmailDomain.value == null || document.ContactForm.EmailDomain.value == '')
	{
		alert('email domain cannot be blank');
		document.ContactForm.EmailDomain.focus();
		return false;
	}
	
	/*
	else if (emailCheck(document.ContactForm.EmailName.value+"@"+document.ContactForm.EmailDomain.value) == false){
		alert("You did not enter a valid email address");
		document.ContactForm.EmailName.focus();
		return false;
	}
	*/
	
	else if (document.ContactForm.PreferredContact.value == '0')
	{
		alert("Please choose a preferred method of contact");
		return false;
	}
	
	
	else if (document.ContactForm.YourMessage.value == '')
	{
		alert("Please enter your message");
		document.ContactForm.YourMessage.focus();
		return false;	
	}
	
	return true;
	
}

function emailCheck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		
		if (str.indexOf(at)==-1){
		   return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false;
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false;
		 }

 		 return true;				
}