function form_check(){
   var l1=document.mywebmail.firstname.value.length;
   if(l1<2)
   {window.alert("Please type in your first name.");document.mywebmail.firstname.focus();return (false);}
   
   var l2=document.mywebmail.lastname.value.length;
   if(l2<2)
   {window.alert("Please type in your Last name.");document.mywebmail.lastname.focus();return (false);}
  
  var l3=document.mywebmail.address.value.length;
   if(l3<2)
   {window.alert("Please type in your address.");document.mywebmail.address.focus();return (false);}
  
  var l4=document.mywebmail.Telephone.value.length;
   if(l4<5)
   {window.alert("Please type in your Telephone Number.");document.mywebmail.Telephone.focus();return (false);}
  
  var l5=document.mywebmail.mail.value.length;
   if(l5<3)
   {window.alert("Please type in your E-mail Address!");document.mywebmail.mail.focus();return (false);}
   
   }