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    <p>Unfortunately there is no onload support for stylesheets in most modern browsers. There is a solution I found with a little Googling.</p> <p><strong>Cited from:</strong> <a href="http://thudjs.tumblr.com/post/637855087/stylesheet-onload-or-lack-thereof" rel="noreferrer">http://thudjs.tumblr.com/post/637855087/stylesheet-onload-or-lack-thereof</a></p> <h3>The basics</h3> <p>The most basic implementation of this can be done in a measely 30 lines of — framework independent — JavaScript code:</p> <pre><code>function loadStyleSheet( path, fn, scope ) { var head = document.getElementsByTagName( 'head' )[0], // reference to document.head for appending/ removing link nodes link = document.createElement( 'link' ); // create the link node link.setAttribute( 'href', path ); link.setAttribute( 'rel', 'stylesheet' ); link.setAttribute( 'type', 'text/css' ); var sheet, cssRules; // get the correct properties to check for depending on the browser if ( 'sheet' in link ) { sheet = 'sheet'; cssRules = 'cssRules'; } else { sheet = 'styleSheet'; cssRules = 'rules'; } var interval_id = setInterval( function() { // start checking whether the style sheet has successfully loaded try { if ( link[sheet] &amp;&amp; link[sheet][cssRules].length ) { // SUCCESS! our style sheet has loaded clearInterval( interval_id ); // clear the counters clearTimeout( timeout_id ); fn.call( scope || window, true, link ); // fire the callback with success == true } } catch( e ) {} finally {} }, 10 ), // how often to check if the stylesheet is loaded timeout_id = setTimeout( function() { // start counting down till fail clearInterval( interval_id ); // clear the counters clearTimeout( timeout_id ); head.removeChild( link ); // since the style sheet didn't load, remove the link node from the DOM fn.call( scope || window, false, link ); // fire the callback with success == false }, 15000 ); // how long to wait before failing head.appendChild( link ); // insert the link node into the DOM and start loading the style sheet return link; // return the link node; } </code></pre> <p>This would allow you to load a style sheet with an onload callback function like this:</p> <pre><code>loadStyleSheet( '/path/to/my/stylesheet.css', function( success, link ) { if ( success ) { // code to execute if the style sheet was loaded successfully } else { // code to execute if the style sheet failed to successfully } } ); </code></pre> <p>Or if you want to your callback to maintain its scope/ context, you could do something kind of like this:</p> <pre><code>loadStyleSheet( '/path/to/my/stylesheet.css', this.onComplete, this ); </code></pre>
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    1. COThis will cause IE7 or later to stop script automatically. and so no callback will fire.
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      1. USFarzin Zaker
    2. COThanks I also ran into another blog post suggesting the same [here](http://www.phpied.com/when-is-a-stylesheet-really-loaded/). Basically to use a timer to check all scrips in the head and see if the required script is loaded or not.
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    3. COwhen i try to execute it, it always returns false, although the stylesheet gets loaded fine. On debugging I found that `link[sheet]` always returns null. do you have any idea about that
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