<script type="text/javascript">
function dianJi(){
//彈出窗口關閉前，原窗口不能獲得焦點
//showModalDialog("f2.php",self,"dialogwidth=500px;dialogheight=500px;dialogtop=100px;dialogleft=100px;center=no;help=no;resizable=no;status=no;scroll=yes");
//彈出窗口不影響原窗口獲得焦點
window.showModelessDialog("f2.php",self,"dialogwidth=500px;dialogheight=500px;dialogtop=100px;dialogleft=100px;center=no;help=no;resizable=no;status=no;scroll=yes");
}
function back_db(a){
$("input[name='text2']").val(a);
}
</script>

<input type="button" onclick="dianJi()" value="觸發(fā)"/>
<input type="text" id="text1" value="hello world!"/>
<input type="text" name="text2" value="hello!"/>

<script type="text/javascript">
//parent.dialogArguments.document.getElementById("text1").value="你好世界！";
window.dialogArguments.document.getElementById("text1").value="你好世界！";
window.dialogArguments.back_db("你好！");
</script>