Microsoft® Expression® Web 4 In Depth: Updated for Service Pack 2 - HTML 5, CSS 3, JQuery, Second Edition (Fernando Lopez-Lezcano's Library) by Jim Cheshire

Author:Jim Cheshire
Language: eng
Format: epub
Publisher: Que Publishing
Published: 2011-09-28T16:00:00+00:00

function swapImage(imgID, imgObj) {

if (document.images) {

document.images[imgID].src = imgObj.src;

}

}

</script>

The swapImage function takes two parameters: imgID and imgObj. The imgID variable contains the id attribute of the image that’s being swapped. This allows you to refer to the correct page element. The imgObj variable is the object name for the image you want to display in place of the original image. When the function runs, the src attribute of the original image is changed to the src attribute for the swapped image. Because the images have been preloaded, the result of this function is that the image instantly changes.

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