function chkField(p,l)
 {
   if(p.value.length < l)
     {
      alert(p.name+": not properly entered; input is mandatory");
      p.focus();
      return false;
     }
   return true;
 }  
 
 function chkEMail(p)
 {
   if (p.value != "")
   {
     if (p.value.length <5 || p.value.indexOf('@') == -1 || p.value.indexOf('.') == -1) 
      {
        alert(p.name+" seems to be misspelled");
        p.focus();
        return false;
      }
   }
   return true;
 }