<HTML>
<HEAD>
<script type="text/javascript" src="jquery.js"></script>
<SCRIPT type="text/javascript">$(document).ready(function() {
$("#checkedAll").click(function(){
if($(this).attr("checked") == true){ //check all
$("input[@name='checkbox_name[]']").each(function(){
$(this).attr("checked",true);
});
}else{
$("input[@name='checkbox_name[]']").each(function(){
$(this).attr("checked",false);
});
}
});
});
</SCRIPT>
</HEAD>
<BODY>
<div class="components-list">
<input type="checkbox" name="checkbox_name[]" />1<br />
<input type="checkbox" name="checkbox_name[]" />2<br />
<input type="checkbox" name="checkbox_name[]" />3<br />
<input type="checkbox" name="checkbox_name[]" />4<br />
<input type="checkbox" name="checkedAll" />全选/取消全选
</div>
<select >
<option value="a">A</option>
<option value="b">B</option>
<option value="c" selected>C</option>
</select>
</BODY></HTML>