// JavaScript Document

/* Extension written by David G. Miles (http://www.z3roadster.net/dreamweaver/) 
based in part on code written by Thomas Brattli (http://www.bratta.com)*/
// Courtesy of SimplytheBest.net - http://simplythebest.net/scripts/
<!--
function verifyCompatibleBrowser(){ 
    this.ver=navigator.appVersion 
    this.dom=document.getElementById?1:0 
    this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0; 
    this.ie4=(document.all && !this.dom)?1:0; 
    this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
    this.ns4=(document.layers && !this.dom)?1:0; 
    this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5) 
    return this 
} 
bw=new verifyCompatibleBrowser() 
var speed=50 
var loop, timer 


function ConstructObject(obj,nest){ 
    nest=(!nest) ? '':'document.'+nest+'.' 
    this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0; 
    this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0; 
    this.scrollHeight=bw.ns4?this.css.document.height:this.el.offsetHeight 
    this.scrollWidth=bw.ns4?this.css.document.width:this.el.offsetWidth
    this.clipHeight=bw.ns4?this.css.clip.height:this.el.offsetHeight 
    this.clipWidth=bw.ns4?this.css.clip.width:this.el.offsetWidth 
    this.up=MoveAreaUp;this.down=MoveAreaDown,this.left=MoveAreaLeft;this.right=MoveAreaRight; 
    this.MoveArea=MoveArea; this.x; this.y; 
    this.obj = obj + "Object" 
    eval(this.obj + "=this") 
    return this 
} 
function MoveArea(x,y){ 
	this.x=x;this.y=y; 
    this.css.left=this.x+'px' 
    this.css.top=this.y+'px'
	//alert(this.el.id+'-'+this.css.left+' - '+this.css.top);
} 
function MoveAreaDown(move){ 	
	//alert(scrollerHeight);
	if(this.y>-this.scrollHeight+objContainer.clipHeight){ 
	//if((strObj.indexOf('links')>0 && this.y>-this.scrollHeight+160) || (strObj.indexOf('links')<=0 && this.y>-this.scrollHeight+336)){ 
    this.MoveArea(0,this.y-move) 
    if(loop) setTimeout(this.obj+".down("+move+")",speed) 
	} 
} 
function MoveAreaUp(move){ 
	if(this.y<0){ 
    this.MoveArea(0,this.y-move) 
    if(loop) setTimeout(this.obj+".up("+move+")",speed) 
	} 
} 
function MoveAreaLeft(move){ 

	if(this.x<0){ 
	    this.MoveArea(this.x-move,0) 
    	if(loop) setTimeout(this.obj+".left("+move+")",speed) 
	} 
} 
function MoveAreaRight(move){ 
	if(this.x>-(this.scrollWidth-objContainer.scrollWidth)){ 
    	this.MoveArea(this.x-move,0) 
	    if(loop) setTimeout(this.obj+".right("+move+")",speed) 
	} 
} 
function PerformScroll(speed){ 
	if(initialised){
		loop=true;
		 //objScrollernews.down(speed)
		if(speed>0){ 
			objScroller.right(speed)
		} 
		else{
			objScroller.left(speed)
		}
 
	} 
} 
function CeaseScroll(){ 
    loop=false 
    if(timer) clearTimeout(timer) 
} 

function displayStatusMsg(msgStr) { 
  status=msgStr;
  document.returnValue = true;
}

var initialised;
 
function InitialiseScrollableArea(){ 
	objContainer=new ConstructObject('divContainerThumbs') 
	objScroller=new ConstructObject('divThumbs') 
	objScroller.MoveArea(0,0);
	objContainer.css.visibility='visible'
	initialised=true; 

}


function Highlight(num){
	var eleThumb = document.getElementById('divThumbImage'+num)
	var eleOverlay = document.getElementById('divThumbOverlay'+num)
	
	eleThumb.className = 'divThumbImageOn'
	eleOverlay.className = 'divThumbOverlayOn'
}

function HighlightOff(num){
	var eleThumb = document.getElementById('divThumbImage'+num)
	var eleOverlay = document.getElementById('divThumbOverlay'+num)
	
	eleThumb.className = 'divThumbImage'
	eleOverlay.className = 'divThumbOverlay'
	
}

function setScrollerWidth() {
	var imgs,i,n,div;
	n=0;
	var imgWidth = 120
	// check browser version - less width for IE6 box model
	this.ver=navigator.appVersion 
    if(this.ver.indexOf("MSIE 6")>-1){
		imgWidth = 116;
	}
							   
	// loop through all images of the document
	 imgs=document.getElementsByTagName('img');
	 for(i=0;i<imgs.length;i++)
	 {
	// test if the class 'roll' exists
	  if(imgs[i].id.indexOf('imgThm')>-1)
	  {
		// increase pixel size for width
	   	n=n+imgWidth;
	  }
	 }

	 n = Math.round(n,0);
	 
	 div=MM_findObj('divThumbs');
	 
	 div.style.width = n+"px";

}