Custom JavaScript Event Manager (CJEM)

var $N={R:function(N){var o=window;var x=false;for(var a=N.split('.');a.length>0;){var s=a.shift();if(a.length==0){if(o[s]){x=true;}}if(!o[s]){o[s]={};}o=o[s];}if(x){return 1;}}};function $O(S){return document.getElementById(S);}function $NU(O){if(O==undefined||O==null){return true;}else{if(typeof(O)=='string'&&O==''){return true;}else{return false;}}}var $CJEM={E:null,Add:function(P,C,T,H,I,W,U){if($NU(this.E)){this.E=new Array();}if($NU(this.E[C])){this.E[C]={};}var A=this.E[C];if($NU(A[T])){A[T]=new Array();}var B=A[T];B.push({'P':P,'C':C,'T':T,'H':H,'I':I,'W':W,'U':U,event:null});$CJEM.Register(C,T);},Remove:function(C,T,H){if($NU(this.E)){return;}var A=this.E[C];if($NU(A)){return;}var B=A[T];if($NU(B)){return;}if(!$NU(H)){for(var i=0;i<B.length;i++){if(H==B[i].H){B[i]=null;B.sort();B.pop();}}}else{B=[];}if(B.length==0){B=null;A[T]=null;delete A[T];$CJEM.UnRegister(C,T);}},UnRegister:function(C,T){switch(C){case 'window':window[T]=null;break;case 'document':document[T]=null;break;default:var A=$O(C);if($NU(A)){return;}A[T]=null;break;}},Register:function(C,T){switch(C){case 'window':window[T]=function(e){$CJEM.Caller(e,C,T);};break;case 'document':document[T]=function(e){$CJEM.Caller(e,C,T);};break;default:var A=$O(C);if($NU(A)){return;}A[T]=function(e){$CJEM.Caller(e,C,T);};break;}},Caller:function(e,C,T){if(!e){e=window.event;}var A=this.E[C];var B=A[T];if($NU(B)){return;}for(var i=0;i<B.length;i++){var D=B[i];D.event=e;if(!$NU(D.I)){if(D.I>0){D.I-=1;}}var F={'ClassObject':B[i].P,'ControlID':B[i].C,'EventType':B[i].T,'TotalInstance':B[i].I,'Wait':B[i].W,'UserObject':B[i].U,event:e};if(!$NU(D.W)){var t=setTimeout(function(){if(D.H(F)){if(navigator.appVersion.indexOf('MSIE')!=-1){e.cancelBubble=true;}else{e.stopPropagation();}}},D.W);}else{if(D.H(F)){if(navigator.appVersion.indexOf('MSIE')!=-1){e.cancelBubble=true;} else {e.stopPropagation();}}}if(D.I==0){$CJEM.Remove(C,T,D.H);}}}};