javascript - Submit calls function two times -

when submit form enter, works without problems. can log in. when submit form button, logs in on firefox, not on chrome. problem is, repeats function twice , sends different hashed password. how can make work on chrome too?

button:

<div id="submit" name="submit" value="login" class="ui fluid large pink submit button" onclick="submitform();">login</div> 

form:

<form id="form" autocomplete="off" class="ui large form" id = "form" name="form" method="post" action="php/verify.php" onsubmit="submitform();"> 

i added onsubmit="submitform();" form, call function when submit form enter.

javascript function:

function submitform(){     var form = document.getelementbyid("form");     var pwd = document.getelementbyid('pwd');     var hash = new jssha("sha-256", "text", {numrounds: 1});     hash.update(pwd.value);     var hash = hash.gethash("hex");     var password = document.createelement("input");     password.name="password";     password.type="hidden";     password.id = "password";     password.value = hash;     alert(password.value);     form.appendchild(password);     form.submit();     pwd.value = ""; } 

in onsubmit handler, you're submitting form:

 form.submit(); 

if that, handler has return false, means need

<form ... onsubmit="submitform(); return false;"> 

otherwise submit form manually, browser submit second time, since onsubmit didn't return false;