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js 操作大全三

//浏览器验证

function checkBrowser()
{  
   this.ver=navigator.appVersion  
   this.dom=document.getElementById?1:0  
   this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;  
   this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;  
   this.ie4=(document.all && !this.dom)?1:0;  
   this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;  
   this.ns4=(document.layers && !this.dom)?1:0;  
   this.mac=(this.ver.indexOf('Mac') > -1) ?1:0;  
   this.ope=(navigator.userAgent.indexOf('Opera')>-1);  
   this.ie=(this.ie6 || this.ie5 || this.ie4)  
   this.ns=(this.ns4 || this.ns5)  
   this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns5 || this.ns4 || this.mac || this.ope)  
   this.nbw=(!this.bw)  
   return this;
}

//计算内容宽和高

<SCRIPT   language="javascript">   
function   test(obj)   
{   
       var   range   =   obj.createTextRange();   
        alert("内容区宽度:   "   +   range.boundingWidth     
                                                  +  "px\r\n内容区高度:   "   +   range.boundingHeight   +  "px");   
              
}   
</SCRIPT>   
<BODY>   
<Textarea id="txt" height="150">sdf</textarea><INPUT   type="button"   value="计算内容宽度"   onClick="test(txt)">   
</BODY>

//无模式的提示框 
 function modelessAlert(Msg)
    {
       window.showModelessDialog("javascript:alert(\""+escape(Msg)+"\");window.close();","","status:no;resizable:no;help:no;dialogHeight:height:30px;dialogHeight:40px;");
    }
//屏蔽按键

<html>
<head>
   <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
   <noscript><meta http-equiv="refresh" content="0;url=about:noscript"></noscript>
   <title>屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键</title>
</head>
<body>
<script language="Javascript"><!--
  //屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键
  //Author: meizz(梅花雨) 2002-6-18
function document.oncontextmenu(){event.returnValue=false;}//屏蔽鼠标右键
function window.onhelp(){return false} //屏蔽F1帮助
function document.onkeydown()
{
  if ((window.event.altKey)&&
       ((window.event.keyCode==37)||   //屏蔽 Alt+ 方向键 ←
        (window.event.keyCode==39)))   //屏蔽 Alt+ 方向键 →
   {
      alert("不准你使用ALT+方向键前进或后退网页！");
      event.returnValue=false;
   }
     /* 注：这还不是真正地屏蔽 Alt+ 方向键，
      因为 Alt+ 方向键弹出警告框时，按住 Alt 键不放，
      用鼠标点掉警告框，这种屏蔽方法就失效了。以后若
      有哪位高手有真正屏蔽 Alt 键的方法，请告知。*/
  if ((event.keyCode==8)   ||                 //屏蔽退格删除键
       (event.keyCode==116)||                 //屏蔽 F5 刷新键
       (event.ctrlKey && event.keyCode==82)){ //Ctrl + R
      event.keyCode=0;
      event.returnValue=false;
      }
  if (event.keyCode==122){event.keyCode=0;event.returnValue=false;}  //屏蔽F11
  if (event.ctrlKey && event.keyCode==78) event.returnValue=false;   //屏蔽 Ctrl+n
  if (event.shiftKey && event.keyCode==121)event.returnValue=false;  //屏蔽 shift+F10
  if (window.event.srcElement.tagName == "A" && window.event.shiftKey)  
       window.event.returnValue = false;             //屏蔽 shift 加鼠标左键新开一网页
  if ((window.event.altKey)&&(window.event.keyCode==115))             //屏蔽Alt+F4
   {
       window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");
      return false;
   }
}
</script>
屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键
</body>
</html>

//屏蔽打印
<style>
@media print{
* {display:none}
}
</style>

//移动的图层，拖动

1.<span style='position:absolute;width:200;height:200;background:red' onmousedown=MouseDown(this) onmousemove=MouseMove() onmouseup=MouseUp()>meizz</span>
<script language=javascript>
var Obj;
function MouseDown(obj)
{
   Obj=obj;
   Obj.setCapture();
   Obj.l=event.x-Obj.style.pixelLeft;
   Obj.t=event.y-Obj.style.pixelTop;
}
function MouseMove()
{
  if(Obj!=null)
   {
     Obj.style.left = event.x-Obj.l;
     Obj.style.top = event.y-Obj.t;
   }
}
function MouseUp()
{
  if(Obj!=null)
   {
     Obj.releaseCapture();
     Obj=null;
   }
}
</script>
2.
<div id="myDiv" src="logo.gif" ondrag="doDrag();" onmouseover="this.style.cursor='hand'" style="position:absolute;left=100;top=100;" onmousedown="doMouseDown();">
<a href="#" onclick="return false"><h1>wlecome</h1></a>
</div>
<script language="JavaScript" type="text/javascript">
var orgMouseX;
var orgMouseY;
var orgObjX;
var orgObjY;
function doDrag()
{
var myObject=document.all.myDiv;

var x=event.clientX;
var y=event.clientY;
myObject.style.left=x-(orgMouseX-orgObjX);
myObject.style.top=y-(orgMouseY-orgObjY);
  
}
function doMouseDown()
{
orgMouseX=event.clientX;
orgMouseY=event.clientY;
orgObjX=parseInt(document.all.myDiv.style.left);
orgObjY=parseInt(document.all.myDiv.style.top);
}

</script>
  

//文档状态改变

<iframe src="a.html" id="f" name="f" scrolling="no" frameborder=0 marginwidth=0 marginheight=0></iframe>
<script>
var doc=window.frames["f"].document;
function s(){
if (doc.readyState=="complete"){
   document.all.f.style.height=doc.body.scrollHeight
   document.all.f.style.width=doc.body.scrollWidth
}
}
doc.onreadystatechange=s
</script>

//刷新后不变的文本框

 

<HTML>
    <HEAD>
    <META NAME="save" CONTENT="history">
    <STYLE>
       .sHistory {behavior:url(#default#savehistory);}
    </STYLE>
    </HEAD>
    <BODY>
    <INPUT class=sHistory type=text id=oPersistInput>
    </BODY>
    </HTML>
//访问剪贴板

    event.dataTransfer.setData("URL", oImage.src);
    sImageURL = event.dataTransfer.getData("URL")
    (2)普通访问
    window.clipboardData.setData("Text",oSource.innerText);
    window.clipboardData.getData("Text");

 

//操作COOKIE

function SetCookie(sName, sValue)
{
document.cookie = sName + "=" + escape(sValue) + "; ";
}
function GetCookie(sName)
{
var aCookie = document.cookie.split("; ");
for (var i=0; i < aCookie.length; i++)
{
   
  var aCrumb = aCookie[i].split("=");
  if (sName == aCrumb[0])  
  return unescape(aCrumb[1]);
}
  
}
function DelCookie(sName)
{
document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec 1999 23:59:59 GMT;";
}

//setTimeout增加参数
<script>
var _st = window.setTimeout;
window.setTimeout = function(fRef, mDelay) {
if(typeof fRef == 'function'){
  var argu = Array.prototype.slice.call(arguments,2);
  var f = (function(){ fRef.apply(null, argu); });
  return _st(f, mDelay);
}
return _st(fRef,mDelay);
}
function test(x){
alert(x);
}
window.setTimeout(test,1000,'fason');
</script>

 

(1)拖拽访问
event.dataTransfer.setData("URL", oImage.src);
sImageURL = event.dataTransfer.getData("URL")
(2)普通访问
window.clipboardData.setData("Text",oSource.innerText);
window.clipboardData.getData("Text");

 

<HTML>
<HEAD>
<META NAME="save" CONTENT="history">
<STYLE>
    .sHistory {behavior:url(#default#savehistory);}
</STYLE>
</HEAD>
<BODY>
<INPUT class=sHistory type=text id=oPersistInput>
</BODY>
</HTML>

 

function modelessAlert(Msg)
{
    window.showModelessDialog("javascript:alert(\""+escape(Msg)+"\");window.close();","","status:no;resizable:no;help:no;dialogHeight:height:30px;dialogHeight:40px;");
}
posted on 2008-07-09 09:54  疯子蔡  阅读(200)  评论(0)    收藏  举报