| 按鈕改變方式
<form>
<p align="center"><font color="#008000">請按下按鈕即可改變背景色顏色</font></p>
<p align="center"><input type="button" value="改變顏色"
onclick="randombackground()"> </p>
</form>
手動選擇改變方式
<form name="backcolorform">
<p align="center">手動選擇顏色.</p>
<div align="center"><center><table border="0">
<tr>
<td><input type="radio" name="color" value="green"
onclick="backcolor(this.form)">Green</td>
<td><input type="radio" name="color" value="aqua"
onclick="backcolor(this.form)">Aqua</td>
<td><input type="radio" name="color" value="red"
onclick="backcolor(this.form)">Red</td>
<td><input type="radio" name="color" value="olive"
onclick="backcolor(this.form)">Olive</td>
</tr>
<tr>
<td><input type="radio" name="color" value="teal"
onclick="backcolor(this.form)">Teal</td>
<td><input type="radio" name="color" value="blue"
onclick="backcolor(this.form)">Blue</td>
<td><input type="radio" name="color" value="maroon"
onclick="backcolor(this.form)">Maroon</td>
<td><input type="radio" name="color" value="navy"
onclick="backcolor(this.form)">Navy</td>
</tr>
<tr>
<td><input type="radio" name="color" value="gray"
onclick="backcolor(this.form)">Gray</td>
<td><input type="radio" name="color" value="lime"
onclick="backcolor(this.form)">Lime</td>
<td><input type="radio" name="color"
value="fuschia"
onclick="backcolor(this.form)">Fuschia</td>
<td><input type="radio" name="color" value="white"
onclick="backcolor(this.form)">White</td>
</tr>
<tr>
<td><input type="radio" name="color" value="purple"
onclick="backcolor(this.form)">Purple</td>
<td><input type="radio" name="color" value="silver"
onclick="backcolor(this.form)">Silver</td>
<td><input type="radio" name="color" value="yellow"
onclick="backcolor(this.form)">Yellow</td>
<td><input type="radio" name="color" value="black"
onclick="backcolor(this.form)">Black</td>
</tr>
</table>
</center></div>
</form>
移動滑鼠改變方式
<a href="16.html"
onmouseover="randombackground()">移動滑鼠接近本行文字即可改變背景顏色!</a>
最後要加入Javascript控制碼內容：
<script
language="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> |