<div id="SWFUpload_0_1" class="uploadify-queue-item">
<div id="SWFUpload_0_2" class="uploadify-queue-item">
<div id="SWFUpload_0_3" class="uploadify-queue-item">
<div id="SWFUpload_0_4" class="uploadify-queue-item">
div如上,求取出上面所有div 并取做大的'SWFUpload_0_4'