// MAKE SURE EMAIL IS VALID


function checkcontactdata(){
   var coform = document.contactform;

   if((coform.Name.value.length<=1)){
      alert("Please enter your full name.");
      coform.Name.focus();
      return;
   }

   if(coform.Email.value.length<=0){
      alert("You must enter a valid email address.");
      coform.Email.focus();
      return;
   }
   else{
      if(validemail(coform.Email.value)==false){
         alert("The email address you have entered is invalid.");
         coform.Email.focus();
         coform.Email.select();
         return;
      }
   }
   

   coform.submit();
}

function validemail(emailin){
   emailin+="";
   if(emailin.length==0){return false;}

   var position=emailin.indexOf("@");
   if(position<1){return false;}

   position=emailin.indexOf(".",position+1);
   if(position<3){return false;}

   if(position==emailin.length-1){return false;}

   return true;
}