在showModalDialog和showModelessDialog中submit时不弹出新窗口

步骤如下:
1.在showModalDialog 的那个页面添加
<base target="_self"/>
2.设置form的属性target为""

示列：
//-------------------------------------------------------
try0.html
打开一个Modal Dialog：
<input onclick="window.showModalDialog ('try1.html',null,'dialogWidth:200px;dialogHeight:150px;status:no;help:no;')" type="button" value="showModalDialog " />

try.html
需要提交表单的页面
<base target=_self>
<form action="try1.html" method="get" tagert="">
    <input type="submit" value="submit">
</form>

=============================================方法2

window.name = "mywindow";
window.document.forms[0].submit();

<html:form action="/Action" method="post" target="mywindow">

<html:form>