document.writeln("");



function checkBrowser(){

	this.ver=navigator.appVersion

	this.dom=document.getElementById?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.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)

	return this

}

bw=new checkBrowser()

timSpeed=50

contHeight=100



function makeScrollObj(obj,nest){

	nest=(!nest) ? '':'document.'+nest+'.'

	this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0;

  	this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0;

	this.height=bw.ns4?this.css.document.height:this.el.offsetHeight

	this.top=b_gettop

	return this

}



function b_gettop(){

	var gleft=(bw.ns4 || bw.ns5) ? eval(this.css.top):eval(this.css.pixelTop);

	return gleft;

}

var scrollTim;

var active=0;



function scroll(speed){

	clearTimeout(scrollTim)

	way=speed>0?1:0

	if((!way && oScroll[active].top()>-oScroll[active].height+contHeight) || (oScroll[active].top()<0 && way)){

		oScroll[active].css.top=oScroll[active].top()+speed

		scrollTim=setTimeout("scroll("+speed+")",timSpeed)

	}

}



function noScroll(){

	clearTimeout(scrollTim)

}



function changeActive(num){

	oScroll[active].css.visibility='hidden'

	active=num

	oScroll[active].css.top=0

	oScroll[active].css.visibility='visible'

}



function scrollInit(){

	oScroll=new Array()

	oScroll[0]=new	makeScrollObj('divScroll1','divCont')



	oScroll[0].css.visibility='visible'

	oControl=new makeScrollObj('divControl')

	oControl.css.visibility='visible'

}



onload=scrollInit;