/*======================================================================================
  UI Effects
======================================================================================*/

function moveFrames(stFrameID, iFrameWidth, stDirection, iTotalQuantity, iMoveAmount, iCurrentEdgeElement){
	//相当重要的动画函数。
	if(stDirection == 'right'){
		iFeaturesLeft = iTotalQuantity-(iCurrentEdgeElement);
		
		if(iFeaturesLeft <= 0){
			return iCurrentEdgeElement;
		}
		
		if(iMoveAmount >= iFeaturesLeft){
			iMoveAmount = (iFeaturesLeft);
		}
		
		iCurrentEdgeElement += iMoveAmount;
		if(iCurrentEdgeElement >= iTotalQuantity){
			iCurrentEdgeElement = iTotalQuantity;
		}
		
		iFullMove = iMoveAmount*iFrameWidth;
		$(stFrameID).animate({"left": "-="+iFullMove+"px"}, "slow");
		
		
		
	}else if(stDirection == 'left'){
		
		if(iCurrentEdgeElement == iMoveAmount){
			return iCurrentEdgeElement;
			
		}else if((iCurrentEdgeElement-iMoveAmount) > iMoveAmount){
			iShiftAmount = iMoveAmount;
			
		}else{
			iShiftAmount = (iCurrentEdgeElement-iMoveAmount);
		}

		iFullMove = iShiftAmount*iFrameWidth;
		$(stFrameID).animate({"left": "+="+iFullMove+"px"}, "slow");

		iCurrentEdgeElement -= iShiftAmount;
				
		
	}else if(stDirection == 'up'){
		
		iFeaturesLeft = iTotalQuantity-(iCurrentEdgeElement);
		
		if(iFeaturesLeft <= 0){
			return iCurrentEdgeElement;
		}
		
		if(iMoveAmount >= iFeaturesLeft){
			iMoveAmount = (iFeaturesLeft);
		}
		
		iCurrentEdgeElement += iMoveAmount;
		if(iCurrentEdgeElement >= iTotalQuantity){
			iCurrentEdgeElement = iTotalQuantity;
		}

		
		iFullMove = iMoveAmount*iFrameWidth;

		$(stFrameID).animate({top: "-="+iFullMove+"px"}, "slow");
		
		iCurrentEdgeElement;
		
	}else if(stDirection == 'down'){
		
		if(iCurrentEdgeElement == iMoveAmount){
			return iCurrentEdgeElement;
			
		}else if((iCurrentEdgeElement-iMoveAmount) > iMoveAmount){
			iShiftAmount = iMoveAmount;
			
		}else{
			iShiftAmount = (iCurrentEdgeElement-iMoveAmount);
		}
		
		iFullMove = iShiftAmount*iFrameWidth;
		
		$(stFrameID).animate({top: "+="+iFullMove+"px"}, "slow");

		iCurrentEdgeElement -= iShiftAmount;
		
	}else{
		iCurrentEdgeElement = 3;
		$(stFrameID).animate({"left": "0px"}, "slow");
	}
	
	return iCurrentEdgeElement;
	
}

function checkButtons(isHorizontal, stLeftArrowID, stRightArrowID, iRightFeature, iTotalFeatures, iQuantityVisible){
	//去除虚线框
	$(stLeftArrowID +','+ stRightArrowID).each(function() {
		//alert(this);
		this.blur();
	});
	//相当重要的箭头样式控制函数
	if(isHorizontal){
		if(iRightFeature >= iTotalFeatures){
			$(stRightArrowID).removeClass('on').addClass('off');
		}else{
			$(stRightArrowID).removeClass('off').addClass('on');
		}
		
		if((iRightFeature-iQuantityVisible) > 0){
			$(stLeftArrowID).removeClass('off').addClass('on');
		}else{
			$(stLeftArrowID).removeClass('on').addClass('off');
		}
	}else{
		if(iRightFeature > (iTotalFeatures-1)){
			$(stRightArrowID).removeClass('on').addClass('off');
		}else{
			$(stRightArrowID).removeClass('off').addClass('on');
		}
		
		if((iRightFeature-iQuantityVisible) > 0){
			$(stLeftArrowID).removeClass('off').addClass('on');
		}else{
			$(stLeftArrowID).removeClass('on').addClass('off');
		}
	}
}