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C=arguments[0],A=[],B,D;for(B=1,D=arguments.length;B<D;B++){A.push(arguments[B])}return(typeof C==="object"&&C)||(typeof C==="function"&&C.apply(this,A))||this}});JS.Observable=new JS.Module({addObserver:function(A,B){(this.__observers__=this.__observers__||[]).push({bk:A,cx:B||null})},removeObserver:function(A,C){this.__observers__=this.__observers__||[];C=C||null;var B=this.countObservers();while(B--){if(this.__observers__[B].bk===A&&this.__observers__[B].cx===C){this.__observers__.splice(B,1);return }}},removeObservers:function(){this.__observers__=[]},countObservers:function(){return(this.__observers__=this.__observers__||[]).length},notifyObservers:function(){if(!this.isChanged()){return }var B=this.countObservers(),A;while(B--){A=this.__observers__[B];A.bk.apply(A.cx,arguments)}},setChanged:function(A){this.__changed__=!(A===false)},isChanged:function(){if(this.__changed__===undefined){this.__changed__=true}return 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