function tcArrowScroller(b,c,d,e){this.scrollright=function(){if(this.currentslide<this.zizzer.getNumSlides()){this.currentslide++;this._doScroll()}};this.scrollleft=function(){if(this.currentslide>0){this.currentslide--;this._doScroll()}};this.scrollto=function(a){if(this.currentslide!=a){this.currentslide=a;this._doScroll()}};this.updateButtons=function(){var a=false;if(this.currentslide<=0)this.hidebutton($(this.lscrollname));else{a=true;this.showbutton($(this.lscrollname))}if(this.zizzer.rhsOffScreen(this.currentslide)){a=
true;this.showbutton($(this.rscrollname))}else this.hidebutton($(this.rscrollname));if(a&&this.containername)$(this.containername).setStyle("visibility","visible");else this.containername&&$(this.containername).setStyle("visibility","hidden")};this.hidebutton=function(a){a.setStyle("visibility","hidden")};this.showbutton=function(a){a.setStyle("visibility","visible")};this.hide=function(){this.hidebutton($(this.lscrollname));this.hidebutton($(this.rscrollname));this.containername&&$(this.containername).setStyle("visibility",
"hidden")};this.reveal=function(){this.updateButtons()};this.getCurrentSlide=function(){return this.currentslide};this._startScroll=function(a){this.zizzer.setHasClicked();a=="right"?this.scrollright():this.scrollleft()};this._doScroll=function(){this.zizzer.scrollTo(this.currentslide);this.updateButtons()};this.reset=function(){this.currentslide=0;this.zizzer.reset();this.updateButtons()};this.rscrollname=b;this.lscrollname=c;this.containername=e;this.zizzer=d;$(this.rscrollname).addEvent("click",
this._startScroll.bind(this,"right"));$(this.lscrollname).addEvent("click",this._startScroll.bind(this,"left"));this.reset()};