f1.php page JS code, the second passed parameter must be self and cannot be anything else

<script type="text/javascript"> 
function dianJi(){ 
//彈出窗口關(guān)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=&#39;text2&#39;]").val(a); 
} 
</script>

HTML code

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

f2.php page, parent.dialogArguments and window. dialogArguments has the same effect, and getElementById must be used here, and getElementByName cannot be used

<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>

For more window.dialogArguments usage instructions, please pay attention to the PHP Chinese website!