function checkform()
{
   var my_car=document.query_form.name.value;
   var fn = my_car.replace(/^\s+|\s+$/, '');
	if(fn=='')
	{
		alert('Please Enter Company Name!');
		document.query_form.name.focus();
		return false;
		}
  var my_car=document.query_form.contact_person.value;
  var fn = my_car.replace(/^\s+|\s+$/, '');
	if(fn=='')
	{
    alert( "Please Enter Contact Person." );
    document.query_form.contact_person.focus();
    return false ;
  }
   var my_car=document.query_form.country.value;
    var fn = my_car.replace(/^\s+|\s+$/, '');
	if(fn=='')
	{
    alert( "Please Select Country." );
    document.query_form.country.focus();
    return false ;
  }
  var my_car=document.query_form.phone.value;
  var fn = my_car.replace(/^\s+|\s+$/, '');
  if(fn=='')
  {
	alert('Please Enter Phone Number !');
	document.query_form.phone.focus();
	return false;
  }	
  if(isNaN(document.query_form.phone.value))
	{
	   alert("Please Enter Vailid  Phone Number.");
	   document.query_form.phone.focus();
	   return false;
	}
   if(document.query_form.email.value=='')
	{
		alert("Please Enter Email Id !");
		document.query_form.email.focus();
		return false;
	}
	if(!is_email(document.query_form.email.value))
			{
				alert("Please Enter the Correct Email Id!");
				document.query_form.email.focus();
				return false;
			}
	function is_email(email)
	{
		if(!email.match(/^[A-Za-z0-9\._\-+]+@[A-Za-z0-9_\-+]+(\.[A-Za-z0-9_\-+]+)+$/))
			return false;
		return true;
	}
	var my_car=document.query_form.comment.value;
    var fn = my_car.replace(/^\s+|\s+$/, '');
	if(fn=='')
	{
    alert( "Please Enter Enquiry." );
    document.query_form.comment.focus();
    return false ;
  }
  var my_car=document.query_form.code.value;
  var fn = my_car.replace(/^\s+|\s+$/, '');
  if(fn=='')
	{
    alert( "Please Enter Verification Code." );
    document.query_form.code.focus();
    return false ;
  }
 }

// End of is_email Function

//  this function checks the given number is signed/unsigned number
//  and return true or false accordingly.
	

//-->