Finding The Size Of Images Using Javascript

If you know some javascript and some HTML then you can go forward….Those who need explanations plz feel free to contact me

view sourceprint?

<script language="JavaScript">

function getImgSize(imgSrc)

{var newImg = new Image();

newImg.src = imgSrc;

var height = newImg.height;

var width = newImg.width;

alert ('The image size is '+width+'*'+height);

}</script>

<img src="1.jpg" id="demoImg" />

<button onclick="getImgSize(document.getElementById('demoImg').src);"value="Click Me">

</button>