check url without http and ".com" - regex

Question

I would like to check if the given url is valid.
It should accept:
www.gmail.com
and should reject:
www.gmail
I tried using this /((ftp|http|https):\/\/)?(\w+:{0,1}\w*#)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%#!\-\/]))?/
It works but if the given input is www.gmail it does accepts it.
Any Ideas?
UPDATE
http://jsfiddle.net/aabanaag/VktaX/

Answer 1

You could use Jquery Validate plugin for that.
$("#myform").validate({
rules: {
field: {
required: true,
url: true
}
}
});
You can find about it here

Answer 2

try this .It is working for me
<script type="text/javascript">
function validate() {
var url = document.getElementById("url").value;
var pattern = new RegExp("^(http:\/\/www.|https:\/\/www.|ftp:\/\/www.|www.){1}([0-9A-Za-z]+\.)");
if (pattern.test(url)) {
alert("Url is valid");
return true;
}
alert("Url is not valid!");
return false;
}
</script>
In jQuery
you can use url validation
<input type="text" class="url"/>

Answer 3

solved my problem:
found this while googling over the internet.
/^(http:\/\/www.|https:\/\/www.|ftp:\/\/www.|www.){1}[0-9A-Za-z\.\-]*\.[0-9A-Za-z\.\-]*$/
var pattern1 = /^(http:\/\/www.|https:\/\/www.|ftp:\/\/www.|www.){1}[0-9A-Za-z\.\-]*\.[0-9A-Za-z\.\-]*$/;
var result = "www.gmail";
if (pattern1.test(result)) {
console.log("test");
}else{
console.log("fail");
}
It works best.