var BvGlobalCounter=function(){};
BvGlobalCounter.value=0;
/*********************************************************************/

/*********************************************************************/
function bvGetMouseX(e)
{
	var tempX;
	if(document.all)
		{
			tempX=e.clientX+document.body.scrollLeft;
		}
	else
		{
			tempX=e.pageX;
		}
	if(tempX<0)
		{
			tempX=0;
		}
	return tempX;
}
/*********************************************************************/

/*********************************************************************/
function BvRatingBar(ratedItem)
	{
		var _prepend=ratedItem;
		var _BGWidth=15;
		var _BGHeight=14;
		var _specificity=1;
		var _maxRating=5;
		var _minRating=1;
		var _ratingType="Stars";
		var _ratingTypeSingular="Star";
		var _sparkleImage=baseURL+"ReviewsFiles/images/sparkle.gif";
		var _rating;
		var _displayItemOverride="score_title";
		var _inputItemOverride="product_score";
		var _isMouseDown=false;
		var _hasValueSet=false;
		this.initializeValue=function(givenValue)
			{
				_hasValueSet=true;
				var ratingValue=(Math.ceil(givenValue/_specificity)*100*_specificity)/100;
				if(ratingValue>_maxRating)
					{
						ratingValue=_maxRating;
					}
				else if(ratingValue<_minRating)
					{
						ratingValue=_minRating;
					}
				_rating=ratingValue;
				var tableWidth=ratingValue*_BGWidth;
				window.$(ratedItem+"Filled").style.width=tableWidth+"px";
				if(_inputItemOverride)
					{
						var inputItemOverrideElement=$(_inputItemOverride);
						if(inputItemOverrideElement)
							{
								inputItemOverrideElement.value=_rating;
							}
					}
				if(_displayItemOverride)
					{
						if($(_displayItemOverride))
							{
								if(_rating==1)
									{
										$(_displayItemOverride).innerHTML=_rating+" "+_ratingTypeSingular;
									}
								else
									{
										$(_displayItemOverride).innerHTML=_rating+" "+_ratingType;
									}
							}
					}
			};
		this.resizeTable=function(event,table)
			{
				var ratingBarElement=$(_prepend+'RatingBar');
				var tableWidth=ratingBarElement.style.width;
				var scaleAmt=bvGetMouseX(event)-bvFindPosX(ratingBarElement);
				var ratingValue=(Math.ceil(scaleAmt/_BGWidth/_specificity)*100*_specificity)/100;
				if(ratingValue>_maxRating)
					{
						ratingValue=_maxRating;
					}
				else if(ratingValue<_minRating)
					{
						ratingValue=_minRating;
					}
				tableWidth=ratingValue*_BGWidth;
				if(tableWidth<1)
					{
						tableWidth=1;
					}
				$(table).style.width=tableWidth+"px";
				_rating=ratingValue;
			};
		this.setRating=function(event)
			{
				this.updateRating(event,_prepend+'Filled');
				_hasValueSet=true;
			};
		this.updateRating=function(event,table,ignoreInput)
			{
				this.resizeTable(event,table);
				if(!ignoreInput)
					{
						if(_inputItemOverride)
							{
								var inputItemOverrideElement=$(_inputItemOverride);
								if(inputItemOverrideElement)
									{
										inputItemOverrideElement.value=_rating;
									}
							}
					}
				if(_displayItemOverride)
					{
						var displayItemOverrideElement=$(_displayItemOverride);
						if(displayItemOverrideElement)
							{
								if(_rating==1)
									{
										displayItemOverrideElement.innerHTML=_rating+" "+_ratingTypeSingular;
									}
								else
									{
										displayItemOverrideElement.innerHTML=_rating+" "+_ratingType;
									}
							}
					}
			};
		this.startSlide=function()
			{
				_isMouseDown=true;
			};
		this.stopSlide=function()
			{
				if(_isMouseDown)
					{
						var backgroundPath=_sparkleImage+'?i='+BvGlobalCounter.value++;
						$(_prepend+'Filled').style.background="url("+backgroundPath+")";
						_isMouseDown=false;
					}
			};
		this.doSlide=function(event)
			{
				if(_isMouseDown)
					{
						this.updateRating(event,_prepend+"Filled");
						_hasValueSet=true;
					}
				else if(!_hasValueSet)
					{
						this.updateRating(event,_prepend+"Hover",true);
					}
			};
		this.resetHover=function()
			{
				$(_prepend+"Hover").style.width='1px';
				if(!_hasValueSet)
					{
						if(_displayItemOverride)
							{
								var displayItemOverrideElement=$(_displayItemOverride);
								if(displayItemOverrideElement)
									{
										displayItemOverrideElement.innerHTML="";
									}
							}
					}
			}
	}
	
/*********************************************************************/

/*********************************************************************/
function bvFindPosX(obj)
	{
		var curleft=0;
		if(obj.offsetParent)
			{
				while(obj)
					{
						curleft+=obj.offsetLeft;obj=obj.offsetParent;
					}
			}
		else if(obj.x)
			{
				curleft+=obj.x;
			}
		return curleft;
	}
/*********************************************************************/

/*********************************************************************/