function trim(s)
{
  return s.replace(/^\s+|\s+$/, '');
} 

function validForm() {

fldvalue=trim(document.CData.cmbsalutation.value);
if(fldvalue=="Not Selected")
{
  alert("Please select a Salutation.");
  document.CData.cmbsalutation.focus();
  return false;
}

fldvalue=trim(document.CData.txtfname.value);
if(fldvalue=="")
{
  alert("Please enter First Name.");
  document.CData.txtfname.value="";
  document.CData.txtfname.focus();
  return false;
}

fldvalue=trim(document.CData.txtlname.value);
if(fldvalue=="")
{
  alert("Please enter Last Name.");
  document.CData.txtlname.value="";
  document.CData.txtlname.focus();
  return false;
}

fldvalue=trim(document.CData.txtphone.value);
if(fldvalue=="")
{
  alert("Please enter Phone Number.");
  document.CData.txtphone.value="";
  document.CData.txtphone.focus();
  return false;
}


if ((document.CData.txtemail.value == "") || (document.CData.txtemail.value.length > 0 && (document.CData.txtemail.value.indexOf("@",0) == - 1 || document.CData.txtemail.value.indexOf(".",0) == - 1))) 
{
  alert("Please enter correct Email Address.");
  document.CData.txtemail.focus();
  return false;
}

fldvalue=trim(document.CData.cmbsubject.value);
if(fldvalue=="Not Selected")
{
  alert("Please select a Subject.");
  document.CData.cmbsubject.focus();
  return false;
}

fldvalue=trim(document.CData.txtmessage.value);
if(fldvalue=="")
{
  alert("Please enter description of your Enquiry.");
  document.CData.txtmessage.value="";
  document.CData.txtmessage.focus();
  return false;
}

fldvalue=trim(document.CData.captchacode.value);
if(fldvalue=="")
{
  alert("You have not entered CAPTCHA code.");
  document.CData.captchacode.value="";
  document.CData.captchacode.focus();
  return false;
}

}