Set attribute value using javascript

Question

I want to set the attribute of an element using javascript and not jQuery, the jQuery would be this, but how would the javascript be?

$("param[name='wmode']").attr("value","opaque");

Answer 1

You can use setAttribute DOM Element method:

element.setAttribute("value","opaque");

So your code without jQuery should be like:

document.querySelector("param[name='wmode']").setAttribute("value","opaque");

Answer 2

Your code is right, probably param is a class not an element

$(".param[name=wmode]").attr("value","opaque");

Answer 3

You can set attribute of any element by using setAttribute function. In your case it will be

document.getElementById('myelement').setAttribute('name', 'My_Element');

You can learn more about this at http://www.w3schools.com/jsref/met_element_setattribute.asp

Thanks