var globalVar = 0;
var lastNr = 0;

function loadImg(theImg,theSrc) {
	if (document.getElementById) 
		document.getElementById(theImg).src = theSrc;
}

function ImgPreload(number, img){
	newImg = new Image;
	newImg = "img" + number;
	newImg.src = img;
}

function changeImg(imgNr, nrImg){
	globalVar = imgNr;
	newImgSrc = document.getElementById('img'+imgNr).src;
	oldImg = document.getElementById('mainImg');
	oldImg.src = newImgSrc;
}

function preImg(nrImg){
	nr = globalVar;
	lastNr = nr;
	if(nr > 0){
		nr--;
		changeImg(nr, nrImg);
		showText();
	}
}

function nextImg(size){
	nr = globalVar;
	lastNr = nr;
	if(nr != size){
		nr++;
		changeImg(nr, size);
		showText();
	}
}

function showText(){
	nr = globalVar;
	lastnr = lastNr;
	myArr = showArr;
	for (var i = 0; i <= myArr.length; i++) {	
		if(nr == myArr[i]){
			//alert("nr " +nr + "lastnr " +lastnr);
			if (lastnr > nr) {
				hideDiv('text'+myArr[i+1]);
			}	
			else if (lastnr < nr) {
				hideDiv('text'+myArr[i-1]);
			}	
			showDiv('text'+nr);
		}
	}
}

function showDiv(divObj) {	
	if (document.getElementById) {
		obj = document.getElementById(divObj);
		obj.style.visibility = "visible";
		obj.blur(); // IE.mac-focus-rectangle !

	}
}

function hideDiv(divObj) {	
	if (document.getElementById) {
		obj = document.getElementById(divObj);
		obj.style.visibility = "hidden";
	}
}