function scroll(s,d,u,w){this.d=d;this.n=s;this.sc=0;this.sp=5;this.t=0;this.o=null;this.u=u;this.wn=w;{
if(document.getElementById){o=document.getElementById(this.d);if(o){this.o=o;this.o.style.overflow='hidden';}
uo=document.getElementById(this.u);wo=document.getElementById(this.wn);
if(uo && wo){uo.onmouseover=function(){eval(s+".scrollUp();")};uo.onmouseout=function(){eval(s+".ss();")};wo.onmouseover=function(){eval(s+".sd();")};wo.onmouseout=function(){eval(s+".ss();")};}}}
this.ss=function(){clearTimeout(this.t);}
this.scrollUp=function(){if(this.o){this.sc=(this.sc-this.sp)<0?0:this.sc-this.sp;this.o.scrollTop=this.sc;this.t=setTimeout(this.n+".scrollUp()",40);}}
this.sd=function(){if(this.o){this.sc+=this.sp;this.o.scrollTop=this.sc;if(this.o.scrollTop==this.sc){this.t=setTimeout(this.n+".sd()",40);}else{this.sc=this.o.scrollTop;}}}
this.resetScroll=function(){if(this.o){this.o.scrollTop=0;this.sc=0;}}}