要完成此效果把如下代碼加入到區(qū)域中
<script language="JavaScript" type="text/javascript">
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()
numItems = 4
circleXstart = 10
circleYstart = -25
circleXoffset = 5
circleYoffset = -3
circlePXspeed = 5
circleTspeed = 10
circleStay = 1
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.'+obj):0
this.evnt = bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?this.css:0
this.showIt = b_showIt
this.moveIt = b_moveIt
this.slide = b_slide
this.slideIt = b_slideIt
this.obj = obj+"Object"
eval(this.obj+"=this")
return this
}
var px = bw.ns4||window.opera?"":"px";
function b_moveIt(x,y){this.x=x; this.y=y; this.css.left=this.x+px; this.css.top=this.y+px;}
function b_showIt(){this.css.visibility="visible"}
function b_slideIt(endx,endy,inc,speed,fn,wh) {
if (!this.slideactive) {
var distx = endx - this.x
var disty = endy - this.y
var num = Math.sqrt(Math.pow(distx,2) + Math.pow(disty,2))/inc
var dx = distx/num
var dy = disty/num
this.slideactive = 1
this.slide(dx,dy,endx,endy,speed,fn,wh)
}
}
function b_slide(dx,dy,endx,endy,speed,fn,wh) {
if (!fn) fn = null
if (!wh) wh = null
if (this.slideactive && (Math.floor(Math.abs(dx))
-1 && circleStay) oCircle.slideIt(oBut[active].x+circleXoffset,oBut[active].y+circleYoffset,circlePXspeed,circleTspeed)
else oCircle.slideIt(circleXstart,circleYstart,circlePXspeed,circleTspeed)
}
function changeListing(num){
active = num
}
if(bw.bw) onload = slideballInit;
</script>
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