Question

How to get real image width & height (cross browser) by JavaScript function ?

Answer 1

First of all, you have a greater chance of getting your question answered if you’d just ask it in a more polite way, and supplying as much relevant information as possible.

Anyway…

For as far as I know, you can use the .width property across pretty much all browsers:

function getDimensions(id) {     var element = document.getElementById(id);     if (element && element.tagName.toLowerCase() == 'img') {         return {             width: element.width,             height: element.height         };     } }  <img id='myimage' src='foo.jpg' alt='' />  // using the function on the above image: var dims = getDimensions('myimage'); alert(dims.width); --> shows width alert(dims.height); --> shows height