function add(){
with(document){
iform.action = "newp.jsp";
iform.submit();
}
}
<form name="iform" action="oldp.jsp" target="_self">
......
</form>
with(document){
iform.action = "newp.jsp";
iform.submit();
}
}
<form name="iform" action="oldp.jsp" target="_self">
......
</form>
newp.jsp?name1=value1&…………,否则就用window.open来打开窗口。