案例：HTML DOM案例     状态：可编辑再运行    进入竖版
 运行结果　
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<html>
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<head>
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<script type="text/javascript">
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myImages=new Array()
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myImages[0]="/img/eg_mouse.jpg"
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myImages[1]="/img/eg_smile.gif"
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myImages[2]="/img/eg_landscape.jpg"
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myImages[3]="/img/eg_landscape2.jpg"
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myImages[4]="/img/eg_landscape3.jpg"
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myImages[5]="/img/eg_greanfoliage.jpg"
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imagecounter=myImages.length-1
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i=0
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​
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function first()
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{
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document.getElementById('imageviewer').src=myImages[0]
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i=0
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}
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​
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function previous()
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{
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if (i>0)
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    {
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    i--
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    document.getElementById('imageviewer').src=myImages[i]
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    }
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}
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​
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function next()
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{
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if (i<imagecounter)
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    {
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    i++
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    document.getElementById('imageviewer').src=myImages[i]
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    }
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}
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​
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function last()
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{
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document.getElementById('imageviewer').src=myImages[imagecounter]
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i=imagecounter
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}
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</script>
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</head>
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​
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<body>
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<center>
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<form>