jquery重用元素搜索

[javascript]代码库

var allItems = $ ( "div.item" );
var keepList = $ ( "div#container1 div.item" );
//现在你可以继续使用这些jQuery对象来工作了。例如，
//基于复选框裁剪“keep list”，复选框的名称
//符合
$ ( formToLookAt + " input:checked" ).each ( function()
{
	keepList = keepList.filter ( "." + $ ( this ).attr ( "name" ) );
} );