var Scroll=Class.create();Scroll.prototype={initialize:function(offsetScroll,container,inspectWindow,inspectWindowScrollers){this.offsetScroll=offsetScroll;this.container=container;this.inspectWindow=inspectWindow;this.inspectWindowScrollers=inspectWindowScrollers;this.posTop=0;this.toggleScrollbar()},toggleScrollbar:function(){if($(this.inspectWindow).getHeight()>$(this.container).getHeight())$(this.inspectWindowScrollers).show();else{$(this.inspectWindowScrollers).hide();this.posTop=0;$(this.inspectWindow).style.top=this.posTop+"px"}},moveScrolUp:function(){if($(this.container).getHeight()-this.posTop<$(this.inspectWindow).scrollHeight){this.posTop=this.posTop-this.offsetScroll;$(this.inspectWindow).style.top=this.posTop+"px"}},moveScrolDown:function(){if(this.posTop!=0){this.posTop=this.posTop+this.offsetScroll;$(this.inspectWindow).style.top=this.posTop+"px"}}};Scroll.showScrollbar=function(div){try{$(div).select("div.hasScrollScrollableArea").each(function(s){var objName="scroll"+s.id,f=objName+".toggleScrollbar()";eval(f)})}catch(e){}};Scroll.refreshScrollbarAfterCallback=function(element){try{$(element).up().select("div.hasScrollScrollableArea").each(function(s){var objName="scroll"+s.id,f=objName+".toggleScrollbar()";eval(f)})}catch(e){}};