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>

$('#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');
});

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.');
} }
});
}
}