function feedback_verify()
{
var name=document.feedback.name.value;
var mobile=document.feedback.mobile.value;
var email=document.feedback.email.value;


if(name=='')
{
alert("Enter the Name"); 
document.feedback.name.focus();
return false;
}


if(mobile=='')
{
alert("Enter the Mobile No."); 
document.feedback.mobile.focus();
return false;
}


if(email=='')
{
alert("Enter the E-mail Id"); 
document.feedback.email.focus();
return false;
}

if(!checkemail(email)){
                  alert("Please Enter The Valid E-mail Id");
                  document.feedback.email.focus();
                  return false;
}



alert("Thanks for filling the feedback form ");
return true;
}




function checkemail(str){
              var filter=/^.+@.+\..{2,3}$/;
                            testresults=false;

              if (filter.test(str))
                  testresults=true;
                            return testresults;
}