Javascript onload功能替代[重复]

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Hey guys I'm trying to integrate payment gateway in my website so they have send me a code but I'm quite new to javascript now they have send code working with <body> tag and I want to use this code with <div> tag:-

<script>
    var hash = '<?php echo $hash ?>';
    function submitPayuForm() {
      if(hash == '') {
        return;
      }
      var payuForm = document.forms.payuForm;
      payuForm.submit();
    }
  </script>

executing function like this:-

<body onload="submitPayuForm()">

How does it possible with or something else.

<div onload="submitPayuForm()">

</div>

Div Onload Custom Script by JQuery

    var hash = '<?php echo $hash ?>';
    function submitPayuForm() {
      if(hash == '') {
        return;
      }
      //alert('here');
      //return false;
      var payuForm = document.forms.payuForm;
      payuForm.submit();
    }

$(function(){
  $('div[onload]').trigger('onload');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

<div onload="submitPayuForm()">

</div>