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8.6

Javascript - check if image exists

Asked by josephdaviskcrm in JavaScript

I'm trying to create an image preloader script on my page.  What I've got is shown below.  However, when the page loads, I'm still noticing that the images are taking a while to pop into place.  Is there in javascript to check and see if a file exists or not?  Or a better question, is there a way with the javascript to check and see if one of these image objects that I'm assigning an image path to actually is pointing at an existing image? 
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imageObj = new Image();
images = new Array();
 
images[0] = "Images/btnHome.png";
images[1] = "Images/btnHome_hover.png";
images[2] = "Images/btnBio.png";
images[3] = "Images/btnBio_hover.png";
images[4] = "Images/btnResume.png";
images[5] = "Images/btnResume_hover.png";
images[6] = "Images/btnLessons.png";
images[7] = "Images/btnLessons_hover.gif";
 
for (var i = 0; i < images.length; i++) {
    imageObj.src = images[i];
}
[+][-]10/24/09 10:19 AM, ID: 25653173Accepted Solution

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Zone: JavaScript
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Solution Provided By: arunrajesh
Participating Experts: 3
Solution Grade: A
 
[+][-]10/22/09 05:14 PM, ID: 25640297Expert Comment

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[+][-]10/22/09 07:50 PM, ID: 25641031Expert Comment

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[+][-]10/24/09 09:23 AM, ID: 25652865Expert Comment

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[+][-]10/24/09 11:34 AM, ID: 25653577Expert Comment

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