[js]点击更换背景颜色/图片

来源：互联网发布：93阅兵知乎编辑：程序博客网时间：2024/04/26 20:01

1，按钮样式

2，下拉样式

<selectonChange="document.bgColor=this.options[this.selectedIndex].value">
<option value="#C0C0C0">灰色的
<option value="BLACK">黑的色
<option value="d2c6ff">淡紫蓝
<option value="feefc7">太阳黄
<option value="ffd2c6">淡红橘
<option value="c7fed8">苹果绿
<option value="80ff80">草原绿
<option value="#C1BC59">橄榄色
<option value="#7BC7FF">天空蓝
<option value="#AEDFD3">蓝绿色
<option value="#508B7D">墨绿色
<option value="#F0F0F0">米白色
</select>

3，触碰样式

<scriptlanguage="Javascript">
<!--
function backcolor(form){
temp = ""
for (var i = 0; i < 16; i++) {
temp = form.color[i].value
if (form.color[i].checked){ document.bgColor = temp }
}
}

function randombackground(){
document.bgColor = getColor()
}

function getColor(){
currentdate = new Date()
backgroundcolor = currentdate.getSeconds()
if (backgroundcolor > 44)
backgroundcolor = backgroundcolor - 45
else if (backgroundcolor > 29)
backgroundcolor = backgroundcolor - 30
else if (backgroundcolor > 15)
backgroundcolor = backgroundcolor - 16
if (backgroundcolor == 0 )
return "olive";
else if (backgroundcolor == 1 )
return "teal";
else if (backgroundcolor == 2 )
return "red";
else if (backgroundcolor == 3 )
return "blue";
else if (backgroundcolor == 4 )
return "maroon";
else if (backgroundcolor == 5 )
return "navy";
else if (backgroundcolor == 6 )
return "lime";
else if (backgroundcolor == 7 )
return "fuschia";
else if (backgroundcolor == 8 )
return "green";
else if (backgroundcolor == 9 )
return "purple";
else if (backgroundcolor == 10 )
return "gray";
else if (backgroundcolor == 11 )
return "yellow";
else if (backgroundcolor == 12 )
return "aqua";
else if (backgroundcolor == 13 )
return "black";
else if (backgroundcolor == 14 )
return "white";
else if (backgroundcolor == 15 )
return "silver";
}
// -->
</script>
<body onload="document.bgColor='lime'; returntrue;">
<a href="javascript:void(0);"onmouseover="randombackground()"><fontsize="5" face="宋体">碰我改变背景颜色</font></a>

</body>

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点击更换背景图片：

IE6不能用的解决方法：

<imgonClick="javascript:document.body.style.background='url(images/bg/1.jpg)';returnfalse;">