对话框一般分为两种类型：模态类型（modal）与非模态类型（modeless）。所谓模态对话框，就是指除非采取有效的关闭手段，用户的鼠标焦点或者输入光标将一直停留在其上的对话框。非模态对话框则不会强制此种特性，用户可以在当前对话框以及其他窗口间进行切换。本文介绍如何使用JavaScript语言来创建这两种类型的对话框、控制其大小和位置、改变其外观以及在对话框间的数据传递。(引用)
一、创建模态和非模态对话框
创建模态对话框：（会缓存最近一次页面的值，通过一些设置可绕过系统的判断）
vReturnValue = window.showModalDialog(sURL [, vFreeArgument] [, sOrnaments]);
创建非模态对话框：（不会）
vReturnValue = window.showModelessDialog(sURL [, vFreeArgument] [, sOrnaments]);
· VReturnValue：对于showModalDialog()，它表示被打开的对话框窗口设置的returnValue属性值。对于showModelessDialog()，它表示新窗口对象。
· VFreeArgument：这个参数可用于传递某种类型的数据到打开的对话框，数据可以是一个数值、字符串、数组或者一个对象类型。在新窗口中引用这个数值时，可通过新创建window对象的dialogArguments 属性。
· SOrnaments：用这个参数指定新窗口的外观。可选择的窗口属性有很多种，当有多种控制需求时，将相关内容用一个字符串连接起来，其间用分号隔开。以下是可选择的属性种类：
o dialogHeight: sHeight
o dialogLeft: sXpos
o dialogTop: sYpos
o dialogWidth: sWidth
o center: ( yes | no | 1 | 0 | on | off )
o dialogHide: ( yes | no | 1 | 0 | on | off )
o edge: ( sunken | raised )
o help: ( yes | no | 1 | 0 | on | off )
o resizable: ( yes | no | 1 | 0 | on | off )
o scroll: ( yes | no | 1 | 0 | on | off )
o status: ( yes | no | 1 | 0 | on | off )
二、控制对话框大小和位置
三、改变对话框外观
四、从Noname1.html页面传递数据到Noname2.html页面
传递对象类型数据
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE>模态窗口和非模态窗口</TITLE><script language="javascript"> var sColor="yyyy"; var sName="xmddl369";
function showModalWindow(){
window.showModalDialog('Noname2.html',window,'dialogWidth:400px;dialogHeight:400px');
} function showModellessWindow(){ window.showModelessDialog('Noname2.html',window,'dialogWidth:400px;dialogHeight:400px;edge:sunken'); } function update() { oColor.innerText = sColor; } document.write("sColor="+sColor+"<br>"); document.write("sName="+sName+"<br>");</script></HEAD><BODY><form><input type="button" name="button" value="打开一个模态窗口" onclick="showModalWindow()"><input type="button" name="button" value="打开一个非模态窗口" onclick="showModellessWindow()"><BR><P>输入你最喜欢的颜色: <SPAN ID="oColor" STYLE="color:red;font-size:24">Yellow</SPAN></P></form></BODY></HTML>-------------------<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> New Document </TITLE><script language="javascript">function getInfoAndUpdate() { var callerWindowObj = dialogArguments; //得到文档的引用 callerWindowObj.sColor = document.all("oEnterColor").value; callerWindowObj.update(); }function cancel() { var callerWindowObj = dialogArguments; callerWindowObj.sColor = "Yellow"; callerWindowObj.update(); } </script></HEAD><BODY><form>输入你最喜欢的颜色:<INPUT type="text" name="oEnterColor" ID="oEnterColor"><BR><BR> <INPUT VALUE="Apply" TYPE=button onclick="getInfoAndUpdate();"> <INPUT VALUE="Ok" TYPE=button onclick="getInfoAndUpdate();window.close();"> <INPUT VALUE="Cancel" TYPE=button onclick="cancel();window.close();"> </form></BODY></HTML>传递数组引用类型数据
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE>模态窗口和非模态窗口</TITLE><script language="javascript"> var fruit=new Array(); fruit[0]="苹果"; fruit[1]="桔子"; fruit[2]="梨"; fruit[3]="香蕉"; function showModalWindow(){ window.showModalDialog('Noname2.html',fruit,'dialogWidth:400px;dialogHeight:400px'); } function showModellessWindow(){ window.showModelessDialog('Noname2.html',fruit,'dialogWidth:400px;dialogHeight:400px;edge:sunken'); }</script></HEAD><BODY><form><input type="button" name="button" value="打开一个模态窗口" onclick="showModalWindow()"><input type="button" name="button" value="打开一个非模态窗口" onclick="showModellessWindow()"><BR></form></BODY></HTML>------------------<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> New Document </TITLE><SCRIPT LANGUAGE="JScript">function deWrite(){ var myobject=document.getElementById("ifruit"); var myfruit=dialogArguments;
for(count=0;count<myfruit.length;count++){
var oOption = document.createElement("OPTION"); oOption.text=myfruit[count]; oOption.value=/count; myobject.add(oOption);
}}</SCRIPT></HEAD><BODY><form><input type="button" name="button" value="click me" onclick="deWrite()"><br>增加水果:<SELECT ID="ifruit" NAME="ifruit"></SELECT></form></BODY></HTML>传递值类型数据
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE>模态窗口和非模态窗口</TITLE><script language="javascript"> function showModalWindow(){ window.showModalDialog('Noname2.html',"xmddl",'dialogWidth:400px;dialogHeight:400px'); } function showModellessWindow(){ window.showModelessDialog('Noname2.html',"xmddl369",'dialogWidth:400px;dialogHeight:400px;edge:sunken'); }</script></HEAD><BODY><form><input type="button" name="button" value="打开一个模态窗口" onclick="showModalWindow()"><input type="button" name="button" value="打开一个非模态窗口" onclick="showModellessWindow()"><BR></form></BODY></HTML>------------------<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> New Document </TITLE><SCRIPT LANGUAGE="JScript">function deWrite(){ var names=dialogArguments;// document.write(names);}</SCRIPT></HEAD><BODY><form><input type="button" name="button" value="click me" onclick="deWrite()"></form></BODY></HTML><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> New Document </TITLE><script language="javascript"> function showOpenWindow(){ window.open('http://www.sohu.com','xmddl','height=600px,width=800px,toolbar=no,menubar=no,resizable=yes, scrollbars=yes, location=no, status=no'); }</script></HEAD><BODY><form> <input type="button" name="button" value="click me" onclick="showOpenWindow()"></form></BODY></HTML>//在模态窗口打开新窗口
在模态窗口的head部分添加如下代码
<base targat='_self'>
