jquery 弹出对话框

//首先应该引入jquery的js
<script src="<c:url value="/script/jquery/jquery-1.6.1.min.js"/>">
	$(function(){
		$('#dialog1').dialog({
			autoOpen: false,
			width: 300,
			buttons: {
				"确定": function() {
					if($("#accountName").val().length < 4){
						alert("账号至少4位");
						return ;
					}
					$('#form1').submit(); 
				}, 
				"取消": function() { 
					$(this).dialog("close"); 
				} 
			}
		});



<td><a href="#!" onclick="$('#dialog1').dialog('open');" class="btn_zhadd">
<img src="../resources/gd/images/btn_adduser.jpg" alt="" /></a></td>

<div id="dialog1" title="增加账号" align="center">
	<form id="form1" action="<c:url value="/gd/account-add.action"/>" method="post"> 
		账　号：<input id="accountName" name="accountName" type="text"/><br/>
		状　态：<select name="state" id="state" style="width: 150px;">
						<option value="1" selected="selected" >生效</option>
					    <option value="0" >失效</option>
				</select>
				<br/>
		帐号类型：<select name="account_type" id="account_type" style="width: 150px;">
						<option value="1" selected="selected" >工单团队</option>
					    <option value="2" >10000号用户</option>
				</select>
				<br/>
		组管理员：<select name="group_admin" id="group_admin" style="width: 150px;">
						<option value="0" selected="selected" >否</option>
					    <option value="1" >是</option>
				</select>				
				
				

	</form>