easyui dialog 表单提交，弹框初始化赋值，dialog实现

//定义弹框html
<div id="delete" class="easyui-dialog" title="Delete" data-options="closed: true" style="width: 400px; height: 280px;">
      <form method="post" class="easyui-form" >
        <div class="notice">You are deleting a comment now!</div>
        <div class="delreason">
          <input type="radio" checked="true" name="delReason" value="unhealthy" />unhealthy
          <input type="radio" name="delReason" value="other" />other
        </div>
        <input type="hidden" name="itemId" id="itemId" value=""/>
        <div class="head">
          <div><span class="bold">Marks</span></div>
        </div>
        <textarea class="textarea" name="delComment" id="delComment"></textarea>
        <div class="center">
          <input onclick="fnSubmit('delete','your request url')" type="button" value="submit"/>
        </div>
      </form>
    </div>　　

设置一个按钮

<button class="r-button" id="deletebtn">Delete</button>

对应的js操作，初始化弹框以及提交表单

$('#deletebtn').click(function (e) {
        e.preventDefault();
        $('#delete_publicity').dialog({
            onOpen:function() {
                 //AAA参数可以为外界变量
                $('#itemId').val(AAA);
                $('#del_post').val('-1');
                $('#deleteMarks').val('');
            }
           //也可以在此处设定初始值，而免于在html中设定了
            //title: 'My Dialog',
            //width: 400,
            //height: 200,
            //closed: false,
            //cache: false,
            //href: 'get_content.php',
            //modal: true
        });
        $('#delete_publicity').dialog('open');
         showModalMask('.modal-mask');
        $('#delete_publicity').window('center');
    });    

　　提交表单操作

function fnSubmit(id,url) {
        if(id=='delete_reply'){
//注意，easyui表单提交实际上是利用jquery的serialize方法将表单数据转化为query string的形式append到url地址上
            var submitPar = $('#'+id+' form').serialize();
            submitPar = submitPar.toString();
            var delReason = submitPar.substring(submitPar.indexOf('=')+1,submitPar.indexOf('&'));
            var delComment = submitPar.substring(submitPar.lastIndexOf('=')+1,submitPar.length);
            delComment = delComment.trim();
//根据easyui 表单提交的方式，若存在文本框在form内，且输入有空格时 将会将空格对应的转化为+号，具体可参见easyui表单提交部分
            if(delReason == 'other' && (delComment==''||/^[\+]+$/.test(delComment))){
                $.messager.alert('Notice','Please enter the reason for the deletion');
            }else{
                ajaxRequest(id,url);
            }
        }else{
            ajaxRequest(id,url);
        }
        function ajaxRequest(id,url){
            $('#'+id+' form').form('submit',{
                url:url,
                onSubmit:function(){
                    //return $(this).form('validate');
                },
                success:function(data){
                    if(data){
                        data = JSON.parse(data);
                    }
                    if(data.code==200){
                        $('#'+id).dialog('close');
                        $.messager.alert('Notice',data.message);
                            *****
                          
                        }else{
                           *********
                        }

                    }else{
                        $.messager.alert('Notice','submit Fail.');
                    }

                }
            });
        }
    }