var whitespace = " \t\n\r";

      /****************************************************************/

      // Check whether string s is empty.
      function isEmpty(s)
      {
		  return ((s == null) || (s.length == 0))
	  }

      /****************************************************************/

  function isWhitespace (s)
      {   var i;	               
           if (isEmpty(s)) return true;           
           for (i = 0; i < s.length; i++)
           {
              var c = s.charAt(i);
			  if (whitespace.indexOf(c) == -1) return false;
           }
           return true;
      }

	function validate(form1)
	{
		
	var name=document.getElementById('name').value;
	var email=document.getElementById('email').value;
	var phone=document.getElementById('phone').value;
	var loc=document.getElementById('location').value;
	var query=document.getElementById('query').value;
	
	
	

	

	
	if(isWhitespace(name) == true)
	{
	alert("Please enter your name ");
	document.form1.name.focus();
	return false;
	}
	if(isWhitespace(email) == true)
	{
	alert("Please enter your email");
	document.form1.email.focus();
	return false;
	}
	//else{var res=val(email);if(res==false){document.form1.email.focus();return false;}}
/*if(isWhitespace(phone) == true)
	{
	alert("Please enter your your phone number");
	document.form1.phone.focus();
	return false;
	}
	if(isWhitespace(loc) == true)
	{
	alert("Please enter your address");
	document.form1.location.focus();
	return false;
	}*/
	if(isWhitespace(query) == true)
	{
	alert("Please enter your query");
	document.form1.query.focus();
	return false;
	}


	return true;
	}

	
	
	
	function val(string) 
	{
	if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/)== -1)
    {
    alert("Plese provide a valid email id.");
    return false;
    }
	}