// JavaScript Document
// by Amots Hetzroni
// 12 March 2004

var nImgBanner;
var nImages;
var cLeft=0;
var cDisplayedBig=0;
var baseName;
var bigPicElement;
var taImg = new Array;
var tRightIconElement;
var tLeftIconElement;
var aImgName = new Array; 
var taImgName = new Array;

function loadImages() {
	for (i=0;i<nImages;i++) {
		if (i<9) {
			aImgName[i] =  baseName+"0"+(i+1)+".jpg";
		} else {
			aImgName[i] =  baseName+(i+1)+".jpg";
		}
		taImgName[i]="TN_"+aImgName[i];
		taImg[i] = new Image;
		taImg[i].src=taImgName[i];
	}
}
function putImages(dir) {
	var ref;
	cLeft = cLeft+dir;
	if (cLeft < 0)
		cLeft = 0;

	if (cLeft == 0) {
		tRightIconElement.src = "/icons/g"+ backImgLn + ".gif";
		tRightIconElement.style.cursor = "default";
		}
	else {
		tRightIconElement.src = "/icons/"+ backImgLn + ".gif";
		tRightIconElement.style.cursor = "hand";
		}
	
	if (cLeft > (nImages - nImgBanner)) cLeft = nImages - nImgBanner;
	
	if (cLeft == (nImages - nImgBanner)) {
		tLeftIconElement.src = "/icons/g"+ fwImgLn + ".gif";
		tLeftIconElement.style.cursor = "default";
		}
	else {
		tLeftIconElement.src = "/icons/"+ fwImgLn + ".gif";
		tLeftIconElement.style.cursor = "hand";
		}
	
	for (i=0;i<(nImgBanner);i++) {
		eval("document.images.Timg"+i+".src=taImg["+(i+cLeft)+"].src");
		ref = document.getElementById("tLink"+i);
		ref.href="javascript:putBigPic("+(cLeft+i)+")";
	}
}
function putBigPic(num) {
	cDisplayedBig = num;
	bigPicElement.innerHTML = "<img src=\""+aImgName[num]+"\">";
	chngBigPicArrow();
}
function changeBigPic(dir) {
	cDisplayedBig = cDisplayedBig+dir;
	if (cDisplayedBig<0) cDisplayedBig=0;
	if (cDisplayedBig>=nImages) cDisplayedBig=nImages-1;
	putBigPic(cDisplayedBig);
}
function chngBigPicArrow(){
	if (cDisplayedBig==0) {
		tBwIconBelement.src= "/icons/g"+ backImgLn + ".gif";
		tBwIconBelement.style.cursor = "default";
	} else {	
		tBwIconBelement.src= "/icons/"+ backImgLn + ".gif";
		tBwIconBelement.style.cursor = "hand";
	}
	if (cDisplayedBig==(nImages-1)) {
		tFwIconBelement.src= "/icons/g"+ fwImgLn + ".gif";
		tFwIconBelement.style.cursor = "default";
	} else {
		tFwIconBelement.src= "/icons/"+ fwImgLn + ".gif";
		tFwIconBelement.style.cursor = "hand";
	}
}

function init () {
	tRightIconElement = document.getElementById("tRightIcon");
	tLeftIconElement  = document.getElementById("tLeftIcon");
	putImages(-1);
	bigPicElement = document.getElementById("bigPicture");
	tBwIconBelement=document.getElementById("tBwIconB");
	tFwIconBelement=document.getElementById("tFwIconB");
	putBigPic(cLeft);
	changeBigPic(-1);
}