function chkForm()
    {     
     if(document.form1.Name.value == "")
      {
       alert("Please enter your full name.");
       document.form1.Name.focus();
       return false;
      }
     if(document.form1.email.value == "")
      {
       alert("Please enter your email address.");
       document.form1.email.focus();
       return false;
      }
     if(document.form1.email.value.indexOf('@') == -1)
      {
       alert("Please enter a valid email address.");
       document.form1.email.focus();
       return false;
      }
     if(document.form1.Request.value == "")
      {
       alert("Please enter your request.");
       document.form1.Request.focus();
       return false;
      }     
    }