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<title>網頁特效|Linkweb.cn/Js|---下拉列表直接選擇背景</title>
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<meta content="text/html; charset=gb2312" http-equiv="Content-Type">
<script language="JavaScript">
<!--
image1= new Image();
image1.src = "images/SHU.JPG";
image2= new Image();
image2.src = "images/A.GIF";
image3= new Image();
image3.src = "images/B.jpg";
image4= new Image();
image4.src = "images/C.jpg";
function imgchange(){
var imageNum = document.form.selImage.selectedIndex + 1;
fname = eval("image" + imageNum + ".src")
document.body.background = eval("image" + imageNum + ".src")
//eval(imgName + ".src");
}
//-->
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<font color="red" face="隸書" size="6">
<p align="center"></font><font COLOR="#000000"> </font></p>
<p align="center"><font face="隸書" size="5" color="#0000FF"><strong>下拉列表直接選擇背景</strong></font></p>
<p align="center"> </p>
<div align="center"><center>
<table border="1" borderColor="#0000FF" borderlight="green" height="150" width="410" bordercolorlight="#00FFFF" bordercolordark="#0000FF" style="border-collapse: collapse" cellpadding="0" cellspacing="0">
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<td align="middle" height="24" width="404"><strong><font color="red" size="5"> </font><font
face="宋體" size="3" color="#0000FF">一般網頁的背景圖片都是設計時設置的,在瀏覽時不能改動,這里提供一個可以瀏覽時通過下拉列表動態改變背景的特效,在下面由列表選擇圖片項目后,再單擊“顯示”按鈕,可以使窗口動態改變背景，使網頁更有交互性。</font></strong></td>
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<td align="center" height="114" width="404"><form name="form">
<p align="center"><select name="selImage" size="1">
<option selected value="歡迎光臨 請選擇背景">歡迎光臨 請選擇背景</option>
<option value="藍天白云">藍天白云</option>
<option value="鵝卵石">鵝卵石</option>
<option value="石塊">石塊</option>
</select><input onclick="imgchange()" type="button" value="顯示"> </p>
</form>
<p> </td>
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</table>
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