// Form Validator
function validate_form ( )
{
    valid = true;

    if ( document.contact_form.fullname.value == "" )
    {
        document.getElementById("error").innerHTML="Name required";
		//alert ( "Please enter your name" );
        valid = false;
	}	
	if ( document.contact_form.fullname.value != "" ){
			document.getElementById("error").innerHTML="";	
    }
		    if ( document.contact_form.enquiry.value == "" )
    {
        document.getElementById("error3").innerHTML="Enquiry message required";
		//alert ( "Please enter a Message" );
        valid = false;
	}	
			if ( document.contact_form.enquiry.value != "" ){
			document.getElementById("error3").innerHTML="";
    }


 var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = document.contact_form.email.value;
		 if(reg.test(address) == false) {
      document.getElementById("error2").innerHTML="Enter a valid email address";
      return false;
	  }

 return valid;
}