if(!Control){var Control={}
}Control.Slider=Class.create();
Control.Slider.prototype={initialize:function(D,A,B){var C=this;
if(D instanceof Array){this.handles=D.collect(function(E){return $(E)
})
}else{this.handles=[$(D)]
}this.track=$(A);
this.options=B||{};
this.axis=this.options.axis||"horizontal";
this.increment=this.options.increment||1;
this.step=parseInt(this.options.step||"1");
this.range=this.options.range||$R(0,1);
this.value=0;
this.values=this.handles.map(function(){return 0
});
this.spans=this.options.spans?this.options.spans.map(function(E){return $(E)
}):false;
this.options.startSpan=$(this.options.startSpan||null);
this.options.endSpan=$(this.options.endSpan||null);
this.restricted=this.options.restricted||false;
this.maximum=this.options.maximum||this.range.end;
this.minimum=this.options.minimum||this.range.start;
this.alignX=parseInt(this.options.alignX||"0");
this.alignY=parseInt(this.options.alignY||"0");
this.trackLength=this.maximumOffset()-this.minimumOffset();
this.handleLength=this.isVertical()?(this.handles[0].offsetHeight!=0?this.handles[0].offsetHeight:this.handles[0].style.height.replace(/px$/,"")):(this.handles[0].offsetWidth!=0?this.handles[0].offsetWidth:this.handles[0].style.width.replace(/px$/,""));
this.active=false;
this.dragging=false;
this.disabled=false;
if(this.options.disabled){this.setDisabled()
}this.allowedValues=this.options.values?this.options.values.sortBy(Prototype.K):false;
if(this.allowedValues){this.minimum=this.allowedValues.min();
this.maximum=this.allowedValues.max()
}this.eventMouseDown=this.startDrag.bindAsEventListener(this);
this.eventMouseUp=this.endDrag.bindAsEventListener(this);
this.eventMouseMove=this.update.bindAsEventListener(this);
this.handles.each(function(F,E){E=C.handles.length-1-E;
C.setValue(parseFloat((C.options.sliderValue instanceof Array?C.options.sliderValue[E]:C.options.sliderValue)||C.range.start),E);
Element.makePositioned(F);
Event.observe(F,"mousedown",C.eventMouseDown)
});
Event.observe(this.track,"mousedown",this.eventMouseDown);
Event.observe(document,"mouseup",this.eventMouseUp);
Event.observe(document,"mousemove",this.eventMouseMove);
this.initialized=true
},dispose:function(){var A=this;
Event.stopObserving(this.track,"mousedown",this.eventMouseDown);
Event.stopObserving(document,"mouseup",this.eventMouseUp);
Event.stopObserving(document,"mousemove",this.eventMouseMove);
this.handles.each(function(B){Event.stopObserving(B,"mousedown",A.eventMouseDown)
})
},setDisabled:function(){this.disabled=true
},setEnabled:function(){this.disabled=false
},getNearestValue:function(A){if(this.allowedValues){if(A>=this.allowedValues.max()){return(this.allowedValues.max())
}if(A<=this.allowedValues.min()){return(this.allowedValues.min())
}var C=Math.abs(this.allowedValues[0]-A);
var B=this.allowedValues[0];
this.allowedValues.each(function(D){var E=Math.abs(D-A);
if(E<=C){B=D;
C=E
}});
return B
}if(A>this.range.end){return this.range.end
}if(A<this.range.start){return this.range.start
}return A
},setValue:function(B,A){if(!this.active){this.activeHandleIdx=A||0;
this.activeHandle=this.handles[this.activeHandleIdx];
this.updateStyles()
}A=A||this.activeHandleIdx||0;
if(this.initialized&&this.restricted){if((A>0)&&(B<this.values[A-1])){B=this.values[A-1]
}if((A<(this.handles.length-1))&&(B>this.values[A+1])){B=this.values[A+1]
}}B=this.getNearestValue(B);
this.values[A]=B;
this.value=this.values[0];
this.handles[A].style[this.isVertical()?"top":"left"]=this.translateToPx(B);
this.drawSpans();
if(!this.dragging||!this.event){this.updateFinished()
}},setValueBy:function(B,A){this.setValue(this.values[A||this.activeHandleIdx||0]+B,A||this.activeHandleIdx||0)
},translateToPx:function(A){return Math.round(((this.trackLength-this.handleLength)/(this.range.end-this.range.start))*(A-this.range.start))+"px"
},translateToValue:function(A){return((A/(this.trackLength-this.handleLength)*(this.range.end-this.range.start))+this.range.start)
},getRange:function(B){var A=this.values.sortBy(Prototype.K);
B=B||0;
return $R(A[B],A[B+1])
},minimumOffset:function(){return(this.isVertical()?this.alignY:this.alignX)
},maximumOffset:function(){return(this.isVertical()?(this.track.offsetHeight!=0?this.track.offsetHeight:this.track.style.height.replace(/px$/,""))-this.alignY:(this.track.offsetWidth!=0?this.track.offsetWidth:this.track.style.width.replace(/px$/,""))-this.alignY)
},isVertical:function(){return(this.axis=="vertical")
},drawSpans:function(){var A=this;
if(this.spans){$R(0,this.spans.length-1).each(function(B){A.setSpan(A.spans[B],A.getRange(B))
})
}if(this.options.startSpan){this.setSpan(this.options.startSpan,$R(0,this.values.length>1?this.getRange(0).min():this.value))
}if(this.options.endSpan){this.setSpan(this.options.endSpan,$R(this.values.length>1?this.getRange(this.spans.length-1).max():this.value,this.maximum))
}},setSpan:function(B,A){if(this.isVertical()){B.style.top=this.translateToPx(A.start);
B.style.height=this.translateToPx(A.end-A.start+this.range.start)
}else{B.style.left=this.translateToPx(A.start);
B.style.width=this.translateToPx(A.end-A.start+this.range.start)
}},updateStyles:function(){this.handles.each(function(A){Element.removeClassName(A,"selected")
});
Element.addClassName(this.activeHandle,"selected")
},startDrag:function(C){if(Event.isLeftClick(C)){if(!this.disabled){this.active=true;
var D=Event.element(C);
var E=[Event.pointerX(C),Event.pointerY(C)];
var A=D;
if(A==this.track){var B=Position.cumulativeOffset(this.track);
this.event=C;
this.setValue(this.translateToValue((this.isVertical()?E[1]-B[1]:E[0]-B[0])-(this.handleLength/2)));
var B=Position.cumulativeOffset(this.activeHandle);
this.offsetX=(E[0]-B[0]);
this.offsetY=(E[1]-B[1])
}else{while((this.handles.indexOf(D)==-1)&&D.parentNode){D=D.parentNode
}if(this.handles.indexOf(D)!=-1){this.activeHandle=D;
this.activeHandleIdx=this.handles.indexOf(this.activeHandle);
this.updateStyles();
var B=Position.cumulativeOffset(this.activeHandle);
this.offsetX=(E[0]-B[0]);
this.offsetY=(E[1]-B[1])
}}}Event.stop(C)
}},update:function(A){if(this.active){if(!this.dragging){this.dragging=true
}this.draw(A);
if(Prototype.Browser.WebKit){window.scrollBy(0,0)
}Event.stop(A)
}},draw:function(B){var C=[Event.pointerX(B),Event.pointerY(B)];
var A=Position.cumulativeOffset(this.track);
C[0]-=this.offsetX+A[0];
C[1]-=this.offsetY+A[1];
this.event=B;
this.setValue(this.translateToValue(this.isVertical()?C[1]:C[0]));
if(this.initialized&&this.options.onSlide){this.options.onSlide(this.values.length>1?this.values:this.value,this)
}},endDrag:function(A){if(this.active&&this.dragging){this.finishDrag(A,true);
Event.stop(A)
}this.active=false;
this.dragging=false
},finishDrag:function(A,B){this.active=false;
this.dragging=false;
this.updateFinished()
},updateFinished:function(){if(this.initialized&&this.options.onChange){this.options.onChange(this.values.length>1?this.values:this.value,this)
}this.event=null
}};