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greasemonkeytampermonkey

Greasemonkey - change HTML classname

i have a page with multi-div class like this:

<div class="fl wid470 adm-leftsection">

how can i change all to:

<div class="fl wid980">

Thanks!

Solution

  • Use document.querySelectorAll. This allows you to select DOM elements with specific attributes/classes. 

    var selected=document.querySelectorAll(".fl.wid470.adm-leftsection");
for(var i = 0, max = selected.length; i < max; i++) {
    all[i].className="fl wid980";
}