function validateform()
{
 var formObj;
 formObj = document.contactform;

if(formObj.nm1.value == "") 
  {
  alert("Kindly Enter Your Complete Name");
   formObj.nm1.value="";
   formObj.nm1.focus();
  return false;
  }

if(formObj.desg1.value == "") 
  {
  alert("Kindly Enter Your designation please");
   formObj.desg1.value="";
   formObj.desg1.focus();
  return false;
  }
  
if(formObj.contactno.value == "" || isNaN(formObj.contactno.value)) 
  {
  alert("Kindly Enter Your Contact Number");
   formObj.contactno.value="";
   formObj.contactno.focus();
  return false;
  }

if(formObj.emailadd.value == "" || formObj.emailadd.value.indexOf ('@', 0) == -1) 
  {
  alert("Kindly Enter Your Complete Email Address");
   formObj.emailadd.value="";
   formObj.emailadd.focus();
  return false;
  }

else if(formObj.query1.value == "")
  {
  alert("Kindly Enter Your Required Query");
   formObj.query1.value="";
   formObj.query1.focus();
  return false;
  }  
}