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Not implemented error in IE

cavtel asked
Last Modified: 2013-12-08

I'm having this problem just for IE (I'm using IE8). The code works fine in all the other browsers (Firefox, Safari, Chrome). Here is a snippet

// I've a div with id='div_a'

window.onload = function() {
  var elem = document.getElementById('div_a');
  elem.onclick = dosomething(elem);

function dosomething(obj) {
  if( !obj ) return;
  obj.onmousedown = function() {
    // doing something over here

Please note that window.onload is actually pointing to a function object. It is the same as doing the following (which yielded the same 'Not implemented' error in IE):-

window.onload = init;

function init() {
  var elem = document.getElementById('div_a');
  elem.onclick = dosomething(elem);

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