here is my code and it's not working in my form.

<script type=text/javascript>

    function valid(){

        var pin_code=document.getElementById(pin);

        var user_mobile=document.getElementById(phone);

        var user_id=document.getElementById(email);

        var pat1=/^([0-9](6,6)+$/;

        var pattern=/^([0-9](10,10))+$/;

        var filter=/^([a-z A-Z 0-9 _.-])+@(([a-z A-Z 0-9-])+.)+([a-z A-z 0-9]{3,3})+$/;



        if (!filter.test(user_id.vlaue)) {

            alert(Email is in www.gmail.com format);

            user_id.focus();

            return false;

        }

        if (!pattern.test(user_mobile.value)) {

            alert(Phone nubmer is in 0123456789 format );

            user_mobile.focus();

            return false;

        }

        if (!pat1.test(pin_code.value))  {

            alert(Pin code should be 6 digits );

            pin_code.focus();

            return false;

        }

    }

</script>

Here is the issue, when i submit the form whether i enter digits or characters in the mobile number or pin code it's accepting that value also. and when i am using these codes in partitions means like for email

<script type=text/javascript> 

    function valid() { 

        var user_id=document.getElementById(email); 

        var filter=/^([a-z A-Z 0-9 _.-])+@(([a-z A-Z 0-9-])+.)+([a-z A-z 0-9 {3,3})+$/; 

        if(!filter.test(user_id.vlaue))  { 

            alert(Email is in www.gmail.com format); 

            user_id.focus(); 

            return false; 

        } 

    } 

</script>

in this code it's working properly but it's not working when i am using all the codes in one single form.

Please help me. Thank You.