JS实现网页背景颜色与select框中颜色同时变化的方法
本文实例讲述了JS实现网页背景颜色与select框中颜色同时变化的方法。分享给大家供大家参考。具体实现方法如下：
<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<htmlxmlns="http://www.w3.org/1999/xhtml">
<head>
<metahttp-equiv="Content-Type"content="text/html;charset=gb2312"/>
<title>JS实现网页背景颜色与select框中的颜色同时变化</title>
</head>
<body>
<scriptlanguage="javascript">
colors=newArray('#FFFFFF','#FFCCFF','#FF99FF','#FF66FF','#FF33FF','#FF00FF','#FFFFCC','#FFCCCC','#FF99CC','#FF66CC','#FF33CC','#FF00CC','#FFFF99','#FFCC99','#FF9999','#FF6699','#FF3399','#FF0099','#FFFF66','#FFCC66','#FF9966','#FF6666','#FF3366','#FF0066','#FFFF33','#FFCC33','#FF9933','#FF6633','#FF3333','#FF0033','#FFFF00','#FFCC00','#FF9900','#FF6600','#FF3300','#FF0000','#CCFFFF','#CCCCFF','#CC99FF','#CC66FF','#CC33FF','#CC00FF','#CCFFCC','#CCCCCC','#CC99CC','#CC66CC','#CC33CC','#CC00CC','#CCFF99','#CCCC99','#CC9999','#CC6699','#CC3399','#CC0099','#CCFF66','#CCCC66','#CC9966','#CC6666','#CC3366','#CC0066','#CCFF33','#CCCC33','#CC9933','#CC6633','#CC3333','#CC0033','#CCFF00','#CCCC00','#CC9900','#CC6600','#CC3300','#CC0000','#99FFFF','#99CCFF','#9999FF','#9966FF','#9933FF','#9900FF','#99FFCC','#99CCCC','#9999CC','#9966CC','#9933CC','#9900CC','#99FF99','#99CC99','#999999','#996699','#993399','#990099','#99FF66','#99CC66','#999966','#996666','#993366','#990066','#99FF33','#99CC33','#999933','#996633','#993333','#990033','#99FF00','#99CC00','#999900','#996600','#993300','#990000','#66FFFF','#66CCFF','#6699FF','#6666FF','#6633FF','#6600FF','#66FFCC','#66CCCC','#6699CC','#6666CC','#6633CC','#6600CC','#66FF99','#66CC99','#669999','#666699','#663399','#660099','#66FF66','#66CC66','#669966','#666666','#663366','#660066','#66FF33','#66CC33','#669933','#666633','#663333','#660033','#66FF00','#66CC00','#669900','#666600','#663300','#660000','#33FFFF','#33CCFF','#3399FF','#3366FF','#3333FF','#3300FF','#33FFCC','#33CCCC','#3399CC','#3366CC','#3333CC','#3300CC','#33FF99','#33CC99','#339999','#336699','#333399','#330099','#33FF66','#33CC66','#339966','#336666','#333366','#330066','#33FF33','#33CC33','#339933','#336633','#333333','#330033','#33FF00','#33CC00','#339900','#336600','#333300','#330000','#00FFFF','#00CCFF','#0099FF','#0066FF','#0033FF','#0000FF','#00FFCC','#00CCCC','#0099CC','#0066CC','#0033CC','#0000CC','#00FF99','#00CC99','#009999','#006699','#003399','#000099','#00FF66','#00CC66','#009966','#006666','#003366','#000066','#00FF33','#00CC33','#009933','#006633','#003333','#000033','#00FF00','#00CC00','#009900','#006600','#003300','#000000');
functionshow(file){
varurl=file.options[file.selectedIndex].value;
if(document.all||document.layers)
location.href=url;
elseif(document.getElementById){
if(url!=undefined)
location.href=url;
}
}
varstreng;
varcolor1=colors[Math.round(Math.random()*(colors.length-1))];
varcolor2=colors[Math.round(Math.random()*(colors.length-1))];
varcolor3=colors[Math.round(Math.random()*(colors.length-1))];
streng='<styletype="text/css">select{width:300;height:118;overflow:hidden;font-family:timesnewroman;font-size:14px;color:';
streng+=color1;
streng+=';background:';
streng+=color2;
streng+=';}body{background:';
streng+=color3;
streng+=';}td{font-family:timesnewroman;font-size:14px;color:#000000;}</style>';
document.writeln(streng);
</script>
<tableborder="0"cellspacing="0"cellpadding="0"width="500">
<formname="form"target="_blank">
<tr>
<td>
<selectname="showoff"id="showoff"size="3"width="200"onChange="show(document.form.showoff)">
<optionvalue="http://www.163.com">163网易</option>
<optionvalue="http://www.baidu.com">百度搜索</option>
</select>
</td>
</tr>
</form>
</table>
</body>
</html>
希望本文所述对大家的javascript程序设计有所帮助。