<input type="image" src="http://expert.csdn.net/images/csdn.gif" onclick="a()" width="120" height="60">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<script>
function a(){
for (i =0 ; i< document.all.dd.length; i++)
document.all.dd[i].checked = true;
}
</script>
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<input type="checkbox" name="dd">
<script>
function a(){
for (i =0 ; i< document.all.dd.length; i++)
document.all.dd[i].checked = true;
}
</script>
解决方案 »
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