检测一个IE窗口去过的站点数目

<!--

/****** Things you can change *****/

msg="欢迎光临网页教学网";

msgSize=4;//1-7

FoNt='Arial';

CoLoR='777777';

speed=2;

/****** Things you shouldn't change *****/

ns=(document.layers)?1:0;

msg=msg.split(''),amount=msg.length,Y=0,X=0,ypos=0,xpos=0,ybase=new Array(),xbase=new Array();

angle = new Array(),divTop= new Array(),divLeft=new Array();

DocHeight=(document.layers)?window.innerHeight:window.document.body.offsetHeight;

DocWidth=(document.layers)?window.innerWidth:window.document.body.offsetWidth;

//initial layer placement!

for (i=0; i < amount; i++){

divTop[i]=Math.round(Math.random()*DocHeight);

divLeft[i]=Math.round(Math.random()*DocWidth);

}

if (ns){

for (i = 0; i < amount; i++)

{document.write('<layer name=nsd'+i+' top=0 left=0 width='+msgSize+' height='+msgSize+'><font face='+FoNt+' size='+msgSize+' color='+CoLoR+'>'+msg[i]+'</font></layer>');}

window.captureEvents(Event.MOUSEMOVE);

function nsMouse(evnt){

ypos = evnt.pageY-20;

xpos = evnt.pageX-10;

}

window.onMouseMove = nsMouse;

}

else{

document.write('<div id="hldr" style="position:absolute;top:0px;left:0px">')

document.write('<div style="position:relative">')

for (i=0; i < amount; i++)

{document.write('<div id=ied style="position:absolute;top:0px;left:0px;width:'+msgSize+';height:'+msgSize+'"><font face='+FoNt+' size='+msgSize+' color='+CoLoR+'>'+msg[i]+'</font></div>')}

document.write('</div></div>')

function ieMouse(){

ypos = event.y-20;

xpos = event.x-10;

}

document.onmousemove = ieMouse;

}

function GoToMouse(){

var DocHeight=(document.layers)?window.innerHeight:window.document.body.offsetHeight;

var DocWidth=(document.layers)?window.innerWidth:window.document.body.offsetWidth;

var iscrll=(document.all)?document.body.scrollTop:0;

var nscrll=(document.layers)?window.pageYOffset:0;

if (!ns)hldr.style.top=iscrll;

for (i=0; i < amount; i++){

Y = ypos - divTop[i];

X = xpos - divLeft[i];

angle[i] = Math.round(Math.atan2(Y,X) * 180/Math.PI);

if (angle[i] < 0) angle[i] += 360;

ybase[i]=Math.round(Math.random()*DocHeight);

xbase[i]=Math.round(Math.random()*DocWidth);

rep=Math.round(Math.random() * 3);

extra=Math.round(Math.random() * 200)

if (rep == 3)xbase[i] =-extra;

if (rep == 2)xbase[i] =DocWidth+extra;

if (rep == 1)ybase[i] =-extra;

if (rep == 0)ybase[i] =DocHeight;

y = Math.round(speed*Math.sin(angle[i]*Math.PI/180));

x = Math.round(speed*Math.cos(angle[i]*Math.PI/180));

divTop[i]+=y;

divLeft[i]+=x;

if ((divLeft[i] > xpos-speed) && (divLeft[i] < xpos+speed/1.5) && (divTop[i] >= ypos-speed/1.5) && (divTop[i] <= ypos+speed/1.5))

{divTop[i]=ybase[i]+nscrll;divLeft[i]=xbase[i]}

var layer=(document.layers)?document.layers['nsd'+i]:ied[i].style;

layer.top=divTop[i];layer.left=divLeft[i];

}

S=setTimeout('GoToMouse()',10);

}

window.onload=GoToMouse;

//-->

</script>