window.open

脚本并不能创建主浏览器窗口，但是一旦主窗口是打开的(并且该窗口包含需要打开的子窗口的脚本),脚本就能产生任意子窗口。

< HTML >
< HEAD >
< TITLE > Window Opener and Closer </ TITLE >
< SCRIPT LANGUSGE = " JavaScript " >
var  newWindow      //全局变量
function  makeNewWindow() {
        newWindow  =  window . open( "" , "" , " HEIGHT=300,WIDTH=300 " )       //将open方法的返回值赋给变量
}
function  closeNewWindow() {
         if  (newWindow) {
                newWindow . close()    //引用newWindow子窗口的close()方法
                newWindow  =   null
        }
}
</ SCRIPT >
</ HEAD >

< BODY >
< FORM >
< INPUT TYPE = " button "  VALUE = " Create New Window "  onClick = " makeNewWindow() " >
< INPUT TYPE = " button "  VALUE = " Close New Window "  onClick = " closeNewWindow() " >
</ FORM >
</ BODY >
</ HTML >