javascript - Use custom image for google signin button -

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i want provide users facility sign in google. however, want use image(only image, no css) "sign in google" button. using following code:

<div id="mysignin"><img src="images/google.png" alt="google"/></div>

i using gapi.signin.render function mentioned on google developer console. code is:

<script src="https://apis.google.com/js/client:platform.js" type="text/javascript"></script>  <script>   function render(){     gapi.signin.render("mysignin", {   // 'callback': 'signincallback',   'clientid': 'xxxx.apps.googleusercontent.com',    'cookiepolicy': 'single_host_origin',    'requestvisibleactions': 'http://schema.org/addaction',   'scope': 'profile' });   }

the problem google signin popup not opening , cannot figure out how solve it. please suggest. in advance. 

  <script type="text/javascript">   /**    * handler signin callback triggered after user selects account.    */     function onsignincallback(resp) {     gapi.client.load('plus', 'v1', apiclientloaded);   }    /**    * sets api call after google api client loads.    */   function apiclientloaded() {     gapi.client.plus.people.get({userid: 'me'}).execute(handleemailresponse);   }    /**    * response callback when api client receives response.    *    * @param resp api response object user email , profile information.    */   function handleemailresponse(resp) {     var primaryemail;     var jsonobj=json.stringify(resp);alert(jsonobj);     var uid= jsonobj.id;     var user_name1= jsonobj.name;     (var i=0; < resp.emails.length; i++) {       if (resp.emails[i].type === 'account') primaryemail = resp.emails[i].value;     }     /* document.getelementbyid('response').innerhtml = 'primary email: ' +         primaryemail + '<br/>id is: ' + uid; */   }

to use image "google sign-in" button, can use googleauth.attachclickhandler() function google javascript sdk attach click handler image. replace <your-client-id> app client id google developers console.

html example:

<html>   <head>     <meta name="google-signin-client_id" content="<your-client-id>.apps.googleusercontent.com.apps.googleusercontent.com">   </head>   <body>     <image id="googlesignin" src="img/your-icon.png"></image>     <script src="https://apis.google.com/js/platform.js?onload=onloadgooglecallback" async defer></script>   </body> </html>

javascript example:

function onloadgooglecallback(){   gapi.load('auth2', function() {     auth2 = gapi.auth2.init({       client_id: '<your-client-id>.apps.googleusercontent.com',       cookiepolicy: 'single_host_origin',       scope: 'profile'     });    auth2.attachclickhandler(element, {},     function(googleuser) {         console.log('signed in: ' + googleuser.getbasicprofile().getname());       }, function(error) {         console.log('sign-in error', error);       }     );   });    element = document.getelementbyid('googlesignin'); }

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