Подзорная труба на сайт

<style type="text/css">
#divExCont {position:absolute; left:0px; top:0px; clip:rect(0px 0px 0px 0px); layer-background-color:#ffffff; background-color:#ffffff;}
#divCircle {position:absolute; z-index:500; visibility:hidden; width:170px;}
body {background-color:#000000; overflow:hidden;}  
</style>
<script language="JavaScript" type="text/javascript">
/**********************************************************************************  
Spotlight  
* Copyright (C) 2001 <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a>
* This script was released at DHTMLCentral.com
* Visit for more great scripts!
* This may be used and changed freely as long as this msg is intact!
* We will also appreciate any links you could give us.
*
* Made by <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a>  
*********************************************************************************/

function lib_bwcheck(){ //Browsercheck (needed)
  this.ver=navigator.appVersion
  this.agent=navigator.userAgent
  this.dom=document.getElementById?1:0
  this.opera5=this.agent.indexOf("Opera 5")>-1
  this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;  
  this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
  this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
  this.ie=this.ie4||this.ie5||this.ie6
  this.mac=this.agent.indexOf("Mac")>-1
  this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;  
  this.ns4=(document.layers && !this.dom)?1:0;
  this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
  return this
}
var bw=new lib_bwcheck()

/*** Variables to set ***/
sCircleWidth = 168 //The width the script will clip to
sCircleHeight = 168 //The height the script will clip to
sStarty = 200 //Where do you want it to initially start
sStartx = 200 //Where do you want it to initially start
clipSpeed = 20 //Number of pixels for each step in the animation.

/******************************************************************************
Making the clipobject part
******************************************************************************/  
function makeObj(obj, nest, x, y){
  nest = (!nest) ? "":'document.'+nest+'.';  
  this.css = bw.dom? document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+"document.layers." +obj):0;  
  this.evnt = bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj):0;  
  this.clip = b_clip;
  this.clipIt = b_clipIt;
  this.clipTo = b_clipTo;
  this.obj = obj + "Object";
  eval(this.obj + "=this");
  return this;
}

// A unit of measure that will be added when setting the position or size of a layer.
var px = bw.ns4||window.opera?"":"px";

//clip part
function b_clipTo(t,r,b,l){
  if (bw.ns4){
  this.css.clip.top=t;this.css.clip.right=r;this.css.clip.bottom=b;this.css.clip.left=l;
  }
  else {
  this.css.clip="rect("+t+"px "+r+"px "+b+"px "+l+"px)";
  }
}
function b_clipIt(tstop,rstop,bstop,lstop,step,fn){
  if (!fn) fn = null
  var clipval = new Array()
  if (bw.dom || bw.ie4) {
  clipval = this.css.clip
  clipval = clipval.slice(5,clipval.length-1);
  clipval = clipval.split(' ')
  for (var i=0; i<4; i++) clipval[i] = parseInt(clipval[i])
  }
  else {
  clipval[0] = this.css.clip.top
  clipval[1] = this.css.clip.right
  clipval[2] = this.css.clip.bottom
  clipval[3] = this.css.clip.left
  }
  totantstep = Math.max(Math.max(Math.abs((tstop-clipval[0])/step),Math.abs((rstop-clipval[1])/step)),
  Math.max(Math.abs((bstop-clipval[2])/step),Math.abs((lstop-clipval[3])/step)))
  if (!this.clipactive)
  this.clip(clipval[0],clipval[1],clipval[2],clipval[3],(tstop-clipval[0])/totantstep,
  (rstop-clipval[1])/totantstep,(bstop-clipval[2])/totantstep,
  (lstop-clipval[3])/totantstep,totantstep,0, fn)
}
function b_clip(tcurr,rcurr,bcurr,lcurr,tperstep,rperstep,bperstep,lperstep,totantstep,antstep, fn){
  tcurr=tcurr+tperstep; rcurr=rcurr+rperstep
  bcurr=bcurr+bperstep; lcurr=lcurr+lperstep
  this.clipTo(tcurr,rcurr,bcurr,lcurr)
  if(antstep<totantstep){
  this.clipactive=true
  antstep++
  setTimeout(this.obj+".clip("+tcurr+","+rcurr+","+bcurr+","+lcurr+","+tperstep+","
  +rperstep+","+bperstep+","+lperstep+","+totantstep+","+antstep+",'"+fn+"')", 40)  
  }else{
  this.clipactive = false
  eval(fn)
  }
}
/******************************************************************************
Initiating the page and the clip objects.
******************************************************************************/  
function spotInit(){
  pageWidth = (bw.ns4 || bw.ns6)?innerWidth:document.body.clientWidth;
  pageHeight = (bw.ns4 || bw.ns6)?innerHeight:document.body.clientHeight;
  oExCont = new makeObj('divExCont')
  if (bw.dom || bw.ie4){
  oExCont.css.width = pageWidth+px
  oExCont.css.height = pageHeight+px
  }
  oCircle = new makeObj('divCircle','divExCont')
  oExCont.clipTo(sStarty,sStartx+sCircleWidth,sStarty+sCircleHeight,sStartx)
  oCircle.css.left = sStartx+px
  oCircle.css.top = sStarty+px
  oCircle.css.visibility = "visible"
  if (bw.ns4)document.captureEvents(Event.MOUSEMOVE)
  document.onmousemove = moveCircle;
}
function moveCircle(e){
  x = (bw.ns4 || bw.ns6)?e.pageX:event.x
  y = (bw.ns4 || bw.ns6)?e.pageY:event.y
  oExCont.clipTo(y-sCircleHeight/2, x+sCircleWidth/2, y+sCircleHeight/2, x-sCircleWidth/2)
  oCircle.css.left = x - sCircleWidth/2 + px
  oCircle.css.top = y - sCircleHeight/2 + px
}
//This is being called when someone clicks the circle.
function showCont(){
  document.onmousemove = null
  oCircle.css.visibility = "hidden"
  oCircle.css.left = 0+px
  oCircle.css.top = 0+px
  oExCont.clipIt(-clipSpeed, pageWidth+clipSpeed, pageHeight+clipSpeed, -clipSpeed, clipSpeed, 'oExCont.css.overflow="auto"')
}

if (bw.bw) onload = spotInit
</script>