function ValidateForm(form)
{
if(form.name.value=="")
   { 
      alert('Please enter your name!')
      form.name.focus(); 
      return false; 
   }  
 if(form.email.value=="")
   { 
      alert('Please enter your email address!') 
      form.email.focus(); 
      return false; 
   }  
   if(form.telephone.value=="")
   { 
      alert('Please enter a telephone number.') 
      form.telephone.focus(); 
      return false; 
   }  
 alert('Your request has been submitted. Thank you.');
 return true;
 
 }