jquery实现全选

<input type="checkbox" name="indexed" id="all"  /> <br>
<input type="checkbox" name="indexed" id="all1"  /> <br>
<input type="checkbox" name="indexed" id="all2" /> <br>
<input type="checkbox" name="indexed" id="all3"  /> <br>
<input type="checkbox" id="checkAll"><label for="checkAll">全选</label>



$(document).ready( function() {
		
$("#checkAll").bind("change",function(){
	var checked=$(this).attr("checked");	
$(":checkbox[name='indexed']").attr("checked",checked);				
			});
		
	});