var ImageScroller=function(_imageScrollerParentDivID,_imageScrollerChildDivID){_imageScrollerParentDivID=getElem(_imageScrollerParentDivID);_imageScrollerChildDivID=getElem(_imageScrollerChildDivID);var prImagePaths=new Array();var prImageAltText=new Array();var prImageClicks=new Array();var prImageDescription=new Array();var iNumOfThumbsShown=1;var iNumOfImages;var bAutoScroll=0;var iAutoScrollDelay=2000;var bAutoScrollDirection=1;var bAutoReverse=1;var iScrollType=1;var bEnableThumbBorder=0;var bEnableCurrentCount=0;var bEnableThumbDescription=0;var bClickOpenType=0;var iImageScrollAmount=1;var objCounterDiv="";var objDescriptionDiv="";var iSmoothSlideInterval=3;var iSmoothSlideAmount=7;var moveTimer;this.THUMB_HEIGHT=80;this.THUMB_WIDTH=80;this.THUMB_PADDING=4;var CURRENT_THUMB_INDEX=1;var NEW_REVERSE_OFFSET=0;var MAX_REVERSE_OFFSET=0;var NEW_FORWARD_OFFSET=0;var IS_SCROLLING=false;this.setNumOfImageToScroll=function(_NumOfImagesToScroll){iImageScrollAmount=parseInt(_NumOfImagesToScroll);};this.enableThumbnailDescription=function(_descriptionDivID){bEnableThumbDescription=1;objDescriptionDiv=_descriptionDivID;};this.setScrollType=function(_iType){if(_iType==0){iScrollType=0;}
else{iScrollType=1;}};this.setScrollSpeed=function(_iSpeed){if(_iSpeed>0||_iSpeed<1000){iSmoothSlideInterval=_iSpeed;}
else{iSmoothSlideInterval=7;}};this.setScrollAmount=function(_iAmount){if(_iAmount>0||_iAmount<1000){iSmoothSlideAmount=_iAmount;}
else{iSmoothSlideAmount=7;}};this.setClickOpenType=function(_openType){if(_openType==0||_openType==1){bClickOpenType=_openType;}};this.enableCurrentCount=function(_counterDivID){bEnableCurrentCount=1;objCounterDiv=_counterDivID;};this.enableThumbBorder=function(_boolean){bEnableThumbBorder=_boolean;};this.setThumbsShown=function(_newNumOfThumbsShown){iNumOfThumbsShown=parseInt(_newNumOfThumbsShown);};this.addThumbnail=function(_thumbnailURL,_fullClickURL,_thumbnailAlt,_thumbnailDescription){prImagePaths[prImagePaths.length]=_thumbnailURL;prImageClicks[prImageClicks.length]=_fullClickURL;prImageAltText[prImageAltText.length]=_thumbnailAlt;prImageDescription[prImageDescription.length]=_thumbnailDescription;};this.setThumbnailHeight=function(_newThumbHeight){this.THUMB_HEIGHT=_newThumbHeight;};this.getThumbnailHeight=function(){return this.THUMB_HEIGHT;};this.setThumbnailWidth=function(_newThumbWidth){this.THUMB_WIDTH=_newThumbWidth;};this.getThumbnailWidth=function(){return this.THUMB_WIDTH;};this.setThumbnailPadding=function(_newThumbPadding){this.THUMB_PADDING=_newThumbPadding;};this.getThumbnailPadding=function(){return THUMB_PADDING;};this.getCurrentThumbIndex=function(){return CURRENT_THUMB_INDEX;};this.getThumbnailCount=function(){return iNumOfImages;};this.renderScroller=function(){iNumOfImages=prImagePaths.length;if(iNumOfThumbsShown>iNumOfImages){iNumOfThumbsShown=iNumOfImages;}
MAX_REVERSE_OFFSET=0-(iNumOfImages-iNumOfThumbsShown)*this.THUMB_WIDTH;if(this.THUMB_PADDING>0){MAX_REVERSE_OFFSET=MAX_REVERSE_OFFSET-(iNumOfImages*this.THUMB_PADDING);}
if(bEnableThumbBorder==1){MAX_REVERSE_OFFSET=MAX_REVERSE_OFFSET-(iNumOfImages*4);}
if(iScrollType==0){_imageScrollerParentDivID.style.width=(this.THUMB_WIDTH*iNumOfThumbsShown)+(iNumOfThumbsShown*(this.THUMB_PADDING*2))+"px";if(bEnableThumbBorder==1){_imageScrollerParentDivID.style.width=(parseInt(_imageScrollerParentDivID.style.width)+(iNumOfThumbsShown*4))+"px";}
_imageScrollerParentDivID.style.height=this.THUMB_HEIGHT+(this.THUMB_PADDING*2)+"px";if(bEnableThumbBorder==1){_imageScrollerParentDivID.style.height=(parseInt(_imageScrollerParentDivID.style.height)+4)+"px";}
_imageScrollerChildDivID.style.width=(this.THUMB_WIDTH*iNumOfImages)+(iNumOfImages*(this.THUMB_PADDING*2))+"px";if(bEnableThumbBorder==1){_imageScrollerChildDivID.style.width=(parseInt(_imageScrollerChildDivID.style.width)+(iNumOfImages*4))+"px";}}
else if(iScrollType==1){_imageScrollerParentDivID.style.width=(this.THUMB_WIDTH)+((this.THUMB_PADDING*2))+"px";if(bEnableThumbBorder==1){_imageScrollerParentDivID.style.width=(parseInt(_imageScrollerParentDivID.style.width)+(4))+"px";}
_imageScrollerParentDivID.style.height=(this.THUMB_HEIGHT*iNumOfThumbsShown)+(iNumOfThumbsShown*(this.THUMB_PADDING*2))+"px";if(bEnableThumbBorder==1){_imageScrollerParentDivID.style.height=(parseInt(_imageScrollerParentDivID.style.height)+(iNumOfThumbsShown*4))+"px";}
_imageScrollerChildDivID.style.width=(this.THUMB_WIDTH)+(this.THUMB_PADDING*2)+"px";if(bEnableThumbBorder==1){_imageScrollerChildDivID.style.width=(parseInt(_imageScrollerChildDivID.style.width)+4)+"px";}}
var oHref;var oImage;oHref=document.createElement("a");oImage=document.createElement("img");for(i=0;i<iNumOfImages;i++){oHref=document.createElement("a");oHref.href=prImageClicks[i];oHref.title=prImageAltText[i];if(bClickOpenType==1){oHref.target="_blank";}
oImage=document.createElement("img");oImage.src=prImagePaths[i];oImage.alt=prImageAltText[i];oImage.border=0;oImage.width=this.THUMB_WIDTH;oImage.height=this.THUMB_HEIGHT;oImage.style.padding=this.THUMB_PADDING;oHref.appendChild(oImage);_imageScrollerChildDivID.appendChild(oHref);}
if(bEnableCurrentCount==1){addAnEvent(window,"load",this.updateCurrentCount);}
if(bEnableThumbDescription==1){addAnEvent(window,"load",this.updateCurrentDescription);}};this.scrollUp=function(){_origOffset=parseInt(_imageScrollerChildDivID.style.top);_currentOffset=parseInt(_imageScrollerChildDivID.style.top);_newOffset=_currentOffset-(this.THUMB_HEIGHT*iImageScrollAmount);if(this.THUMB_PADDING>0){_newOffset=_newOffset-(2*this.THUMB_PADDING);}
if(bEnableThumbBorder==1){_newOffset=_newOffset-4;}
if(IS_SCROLLING==false&&_newOffset>=MAX_REVERSE_OFFSET){NEW_FORWARD_OFFSET=_newOffset;moveScrollerUp();}};this.scrollDown=function(){_origOffset=parseInt(_imageScrollerChildDivID.style.top);_currentOffset=parseInt(_imageScrollerChildDivID.style.top);_newOffset=_currentOffset+(this.THUMB_HEIGHT*iImageScrollAmount);if(this.THUMB_PADDING>0){_newOffset=_newOffset+(2*this.THUMB_PADDING);}
if(bEnableThumbBorder==1){_newOffset=_newOffset+4;}
if(_newOffset<=0){if(_currentOffset>(_origOffset-this.THUMB_HEIGHT)){if(IS_SCROLLING==false&&_newOffset>=MAX_REVERSE_OFFSET){NEW_REVERSE_OFFSET=_newOffset;moveScrollerDown();}}}};this.scrollTop=function(){if(IS_SCROLLING==false){NEW_FORWARD_OFFSET=(-1*(iNumOfImages-iNumOfThumbsShown)*this.THUMB_HEIGHT);CURRENT_THUMB_INDEX=iNumOfImages-iNumOfThumbsShown;moveScrollerUp();}};this.scrollBottom=function(){if(IS_SCROLLING==false){NEW_REVERSE_OFFSET=0;CURRENT_THUMB_INDEX=iNumOfImages-iNumOfThumbsShown;moveScrollerDown();}};this.scrollReverse=function(){_origOffset=parseInt(_imageScrollerChildDivID.style.left);_currentOffset=parseInt(_imageScrollerChildDivID.style.left);_newOffset=_currentOffset+(this.THUMB_WIDTH*iImageScrollAmount);if(this.THUMB_PADDING>0){_newOffset=_newOffset+(this.THUMB_PADDING*(2*iImageScrollAmount));}
if(bEnableThumbBorder==1){_newOffset=_newOffset+4;}
if(_newOffset<=0){if(_currentOffset>(_origOffset-(this.THUMB_WIDTH*iImageScrollAmount))){if(IS_SCROLLING==false){NEW_REVERSE_OFFSET=_newOffset;moveScrollerRight();}}}};this.scrollForward=function(){_origOffset=parseInt(_imageScrollerChildDivID.style.left);_currentOffset=parseInt(_imageScrollerChildDivID.style.left);_newOffset=_currentOffset-(this.THUMB_WIDTH*iImageScrollAmount);if(this.THUMB_PADDING>0){_newOffset=_newOffset-((2*iImageScrollAmount)*this.THUMB_PADDING);}
if(bEnableThumbBorder==1){_newOffset=_newOffset-4;}
if(IS_SCROLLING==false&&_newOffset>=MAX_REVERSE_OFFSET){NEW_FORWARD_OFFSET=_newOffset;moveScrollerLeft();}};this.scrollEnd=function(){if(IS_SCROLLING==false){NEW_FORWARD_OFFSET=MAX_REVERSE_OFFSET;CURRENT_THUMB_INDEX=iNumOfImages-iNumOfThumbsShown;moveScrollerLeft();}};this.scrollBegin=function(){if(IS_SCROLLING==false){NEW_REVERSE_OFFSET=0;CURRENT_THUMB_INDEX=2;moveScrollerRight();}};this.updateCurrentDescription=function(){getElem(objDescriptionDiv).innerHTML=prImageDescription[CURRENT_THUMB_INDEX-1];};this.updateCurrentCount=function(){getElem(objCounterDiv).innerHTML=CURRENT_THUMB_INDEX+"/"+iNumOfImages;};function moveScrollerUp(){_ElementObj=_imageScrollerChildDivID;_currentOffset=parseInt(_ElementObj.style.top);if(_currentOffset>NEW_FORWARD_OFFSET&&(_currentOffset-iSmoothSlideAmount)>=NEW_FORWARD_OFFSET){_ElementObj.style.top=_currentOffset-iSmoothSlideAmount+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerUp,iSmoothSlideInterval);}
else if(_currentOffset>NEW_FORWARD_OFFSET){_ElementObj.style.top=_currentOffset-1+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerUp,iSmoothSlideInterval);}
else{IS_SCROLLING=false;CURRENT_THUMB_INDEX++;window.clearTimeout(moveTimer);if(bEnableThumbDescription==1){getElem(objDescriptionDiv).innerHTML=prImageDescription[CURRENT_THUMB_INDEX-1];}
if(bEnableCurrentCount==1){getElem(objCounterDiv).innerHTML=CURRENT_THUMB_INDEX+"/"+iNumOfImages;}}};function moveScrollerDown(){_ElementObj=_imageScrollerChildDivID;_currentOffset=parseInt(_ElementObj.style.top);if(_currentOffset<NEW_REVERSE_OFFSET&&(_currentOffset+iSmoothSlideAmount)<=NEW_REVERSE_OFFSET){_ElementObj.style.top=_currentOffset+iSmoothSlideAmount+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerDown,iSmoothSlideInterval);}
else if(_currentOffset<NEW_REVERSE_OFFSET){_ElementObj.style.top=_currentOffset+1+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerDown,iSmoothSlideInterval);}
else{IS_SCROLLING=false;CURRENT_THUMB_INDEX--;window.clearTimeout(moveTimer);if(bEnableThumbDescription==1){getElem(objDescriptionDiv).innerHTML=prImageDescription[CURRENT_THUMB_INDEX-1];}
if(bEnableCurrentCount==1){getElem(objCounterDiv).innerHTML=CURRENT_THUMB_INDEX+"/"+iNumOfImages;}}};function moveScrollerRight(){_ElementObj=_imageScrollerChildDivID;_currentOffset=parseInt(_ElementObj.style.left);if(_currentOffset<NEW_REVERSE_OFFSET&&(_currentOffset+iSmoothSlideAmount)<=NEW_REVERSE_OFFSET){_ElementObj.style.left=_currentOffset+iSmoothSlideAmount+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerRight,iSmoothSlideInterval);}
else if(_currentOffset<NEW_REVERSE_OFFSET){_ElementObj.style.left=_currentOffset+1+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerRight,iSmoothSlideInterval);}
else{IS_SCROLLING=false;CURRENT_THUMB_INDEX--;window.clearTimeout(moveTimer);if(bEnableThumbDescription==1){getElem(objDescriptionDiv).innerHTML=prImageDescription[CURRENT_THUMB_INDEX-1];}
if(bEnableCurrentCount==1){getElem(objCounterDiv).innerHTML=CURRENT_THUMB_INDEX+"/"+iNumOfImages;}}};function moveScrollerLeft(){_ElementObj=_imageScrollerChildDivID;_currentOffset=parseInt(_ElementObj.style.left);if(_currentOffset>NEW_FORWARD_OFFSET&&(_currentOffset-iSmoothSlideAmount)>=NEW_FORWARD_OFFSET){_ElementObj.style.left=_currentOffset-iSmoothSlideAmount+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerLeft,iSmoothSlideInterval);}
else if(_currentOffset>NEW_FORWARD_OFFSET){_ElementObj.style.left=_currentOffset-1+"px";IS_SCROLLING=true;moveTimer=window.setTimeout(moveScrollerLeft,iSmoothSlideInterval);}
else{IS_SCROLLING=false;CURRENT_THUMB_INDEX++;window.clearTimeout(moveTimer);if(bEnableThumbDescription==1){getElem(objDescriptionDiv).innerHTML=prImageDescription[CURRENT_THUMB_INDEX-1];}
if(bEnableCurrentCount==1){getElem(objCounterDiv).innerHTML=CURRENT_THUMB_INDEX+"/"+iNumOfImages;}}};function addAnEvent(_obj,_eventName,_functionName){if(window.addEventListener){_obj.addEventListener(_eventName,_functionName,false);}
else{_obj.attachEvent("on"+_eventName,_functionName);}};function getElem(_elemID){return document.getElementById(_elemID);};};