javascript實用技巧集錦(2)

技巧

14. 游標是停在文字框文字的最後

<script language="javascript">
function cc()
{
var e = event.srcElement;
var r =e.createTextRange();
r.moveStart("character",e.value.length);
r.collapse(true);
r.select();
}
</script>
<input type=text name=text1 value="123" >

15. 判斷的來源

javascript:
document.referrer

16. 最小化、最大化、關閉視窗

<object id=hh1 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<param name="Command" value="Minimize"></object>
<object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<param name="Command" value="Maximize"></object>
<OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">
<PARAM NAME="Command" VALUE="Close"></OBJECT>
<input type=button value=最小化 onclick=hh1.Click()>
<input type=button value=最大化 onclick=hh2.Click()>
<input type=button value=關閉 onclick=hh3.Click()>
本例適用於IE

17.屏蔽功能鍵Shift,Alt,Ctrl

<script>
function look(){
if(event.shiftKey)
alert("禁止按Shift鍵!"); //可以換成ALT　CTRL
}
document.onkeydown=look;
</script>

18. 網頁不會被緩衝

<META HTTP-EQUIV="pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
<META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT">
或者<META HTTP-EQUIV="expires" CONTENT="0">

19.怎樣讓表單沒有凹凸感？

<input type=text style="border:1 solid #000000">
或
<input type=text style="border-left:none; border-right:none; border-top:none; border-bottom:

1 solid #000000"></textarea>

20.<div><span>&<layer>的區別？

<div>(division)用來定義大段的頁面元素，會產生轉行
<span>用來定義同一行內的元素，跟<div>的唯一區別是不產生轉行
<layer>是ns的標記，ie不支援，相當於<div>