imgareaselect + php实现图片裁剪

/js/jquery.imgareaselect-0.9.10/css/imgareaselect-default.css 
引用js 
/js/jquery.imgareaselect-0.9.10/scripts/jquery.imgareaselect.min.js 
/js/AjaxFileUploaderV2.1/ajaxfileupload.js

<div>
    <img src=&#39;blank.jpg&#39; id="mainimg">
</div>
<div id="myPreview" >
    <img src="blank.jpg" id="mainimgthumb" />
</div>
    <form name="fmCrop">
        <input type="hidden" name="src_path"  value="" />
        <input type="hidden" name="x1" value="" />
        <input type="hidden" name="x2" value="" />
        <input type="hidden" name="y1" value="" />
        <input type="hidden" name="y2" value="" />
        <input type="submit" name="btnSubmit" class="baseinf_but1" style="display:none" value="确定" />
    </form>