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46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
function display_random_image()
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{
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var theImages = [{
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src: "http://farm4.staticflickr.com/3691/11268502654_f28f05966c_m.jpg",
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width: "240",
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height: "160"
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}, {
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src: "http://farm1.staticflickr.com/33/45336904_1aef569b30_n.jpg",
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width: "320",
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height: "195"
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}, {
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src: "http://farm6.staticflickr.com/5211/5384592886_80a512e2c9.jpg",
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width: "500",
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height: "343"
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}];
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var preBuffer = [];
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for (var i = 0, j = theImages.length; i < j; i++) {
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preBuffer[i] = new Image();
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preBuffer[i].src = theImages[i].src;
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preBuffer[i].width = theImages[i].width;
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preBuffer[i].height = theImages[i].height;
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}
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// create random image number
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function getRandomInt(min,max)
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{
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// return Math.floor(Math.random() * (max - min + 1)) + min;
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imn = Math.floor(Math.random() * (max - min + 1)) + min;
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return preBuffer[imn];
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}
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// 0 is first image, preBuffer.length - 1) is last image
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var newImage = getRandomInt(0, preBuffer.length - 1);
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// remove the previous images
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var images = document.getElementsByTagName('img');
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var l = images.length;
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for (var p = 0; p < l; p++) {
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images[0].parentNode.removeChild(images[0]);
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}
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// display the image
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document.body.appendChild(newImage);
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}
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