javascript - Why is my Java script code not running? (Form Validation) -


this html: 

<html>  <head>      <title>article</title>     <link rel="stylesheet" href="pop.css" type="text/css" />     <meta http-equiv="content-type" content="text/html; charset=utf-8" /> </head>  <body>     <script type="text/javascript" src="validator.js"></script>     <div id="comment_form">          <form method="post">             name:             <input type="text" name="name" id="name1" onblur="checkname()">             <br/> email:             <input type="text" name="email" id="email1" onblur="checkemail()">             <br/>             <br/> comment:             <br/>             <textarea name="comment" id="comment1" cols="50" rows="2" onblur="checkcomment()"></textarea>             <br/>             <input type="submit" value="comment" onsubmit="validateform()">          </form> </body>  </html>

and javascript: 

function checkname() {     alert("isee ur java script");     var myname = document.getelementbyid("name1");      var pos = myname.value.search(/^[a-z][a-z] $/);     if (pos != 0) {         alert("please enter valid name. should not contain numbers.");         retrun false;     } else         return true }   function checkemail() {     var myemail = document.getelementbyid("email1");      var pos = myemail.value.search(/^[a-z]+-?\.?_?@[a-z]+\.[a-z]+$/);     if (pos != 0) {         alert("please enter valid email address. eg. youremail@hotmail.com");         retrun false;     } else         return true }  function checkcomment() {     var mycomment = document.getelementbyid("comment1");     if (mycomment == null || mycomment == "") {         alert("please add comment.");         return false;     } }  function validateform() {     if (myname == null || myname == "" || myemail == null || myemail == "" || mycomment = null || mycomment == "") {         alert("please fill out of fields!");     } }

it's not working @ all, if try alert in 1 of function doesn't show up. tried adding in validator.js instead of calling events in html, , it's still not working. 

document.getelementbyid("name").onblur = checkname; document.getelementbyid("email").onblur = checkemail; document.getelementbyid("comment").onblur = checkcomment;

debugged. in jsfiddle it's still not working, @ least there aren't mistakes in javascript anymore. tried in jsbin:--->http://jsbin.com/vabewefubi/1/edit?html,js,output

    function checkname() {     alert("isee ur java script");     var myname = document.getelementbyid("name1");      var pos = myname.value.search(/^[a-z][a-z] $/);     if (pos !== 0) { //!== old: !=         alert("please enter valid name. should not contain numbers.");         return false; //return old: retrun     } else         return true; //missing semicolon }   function checkemail() {     var myemail = document.getelementbyid("email1");      var pos = myemail.value.search(/^[a-z]+-?\.?_?@[a-z]+\.[a-z]+$/);     if (pos !== 0) { //!== old: !=         alert("please enter valid email address. eg. youremail@hotmail.com");         return false; //return old: retrun     } else         return true; //missing semicolon }  function checkcomment() {     var mycomment = document.getelementbyid("comment1");     if (mycomment === null || mycomment === "") { //=== old: ==         alert("please add comment.");         return false;     } }  function validateform() {     if (myname === null || myname === "" || myemail === null || myemail === "" || mycomment === null || mycomment === "") { //=== old: ==         alert("please fill out of fields!");     } }

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