function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	//set the current image as background
	document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}

function blendimage(divid, imageid, imagefile, millisec) { 
    var speed = Math.round(millisec / 100); 
    var timer = 0; 
     
    //set the current image as background 
    document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")"; 
     
    //make image transparent 
    changeOpac(0, imageid); 
     
    //make new image 
    document.getElementById(imageid).src = imagefile; 

    //fade in image 
    for(i = 0; i <= 100; i++) { 
        setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed)); 
        timer++; 
    } 
}

function blendimageHide(divid, imageid, imagefile, millisec) { 
    var speed = Math.round(millisec / 100); 
    var timer = 0; 
    
    hideShow('blenddiv');
     
    //set the current image as background 
    document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")"; 
     
    //make image transparent 
    changeOpac(0, imageid); 
     
    //make new image 
    document.getElementById(imageid).src = imagefile; 

    //fade in image 
    for(i = 0; i <= 100; i++) { 
        setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed)); 
        timer++; 
    } 
}


//www.cryer.co.uk - 2004 and www.brainerror.net ver 1.3 - June 7,2004 
//were reference for the following Javascript slide show code
var slideCache = new Array(); 
function RunSlideShow(divid,imageid,imageFiles,lastImage,displaySecs) 
    { 
    var imageSeparator = imageFiles.indexOf(";"); 
    var nextImage = imageFiles.substring(0,imageSeparator); 
    
    var bildNavi = document.getElementById(nextImage+"D");
    bildNavi.style.color = "#59585C";
    if(lastImage != 'x')
        {
        var lastBildNavi = document.getElementById(lastImage+"D");
        lastBildNavi.style.color = "#b0b1b4";
        }
    
    changeOpac(0, imageid); 
    blendimage(divid,imageid,nextImage,1500); 
    
    var futureImages= imageFiles.substring(imageSeparator+1,imageFiles.length)+ ';' + nextImage; 
    setTimeout("RunSlideShow('"+divid+"','"+imageid+"','"+futureImages+"','"+nextImage+"',"+displaySecs+")",5000);
    
    // Cache the next image to improve performance. 
    imageSeparator = futureImages.indexOf(";"); 
    nextImage = futureImages.substring(0,imageSeparator); 
    if (slideCache[nextImage] == null) 
        { 
        slideCache[nextImage] = new Image; 
        slideCache[nextImage].src = nextImage; 
        } 
    }

function hideShow(id)
{
    var content = document.getElementById(id);
    var contentNavi = document.getElementById("navi"+id);
    content.style.display = "";
    contentNavi.style.display = "";
}

function highlightNavi(id)
{
    var aktiv = document.getElementById(id);
    var inaktiv1 = document.getElementById("bildNavi1");
    var inaktiv2 = document.getElementById("bildNavi2");
    var inaktiv3 = document.getElementById("bildNavi3");
    var inaktiv4 = document.getElementById("bildNavi4");
    var inaktiv5 = document.getElementById("bildNavi5");
    var inaktiv6 = document.getElementById("bildNavi6");
    var inaktiv7 = document.getElementById("bildNavi7");
    var inaktiv8 = document.getElementById("bildNavi8");
    var inaktiv9 = document.getElementById("bildNavi9");
    var inaktiv10 = document.getElementById("bildNavi10");
    var inaktiv11 = document.getElementById("bildNavi11");
    var inaktiv12 = document.getElementById("bildNavi12");
    var inaktiv13 = document.getElementById("bildNavi13");
    var inaktiv14 = document.getElementById("bildNavi14");
    var inaktiv15 = document.getElementById("bildNavi15");
    var inaktiv16 = document.getElementById("bildNavi16");
    var inaktiv17 = document.getElementById("bildNavi17");
    var inaktiv18 = document.getElementById("bildNavi18");
    var inaktiv19 = document.getElementById("bildNavi19");
    var inaktiv20 = document.getElementById("bildNavi20");
    if(id != "bildNavi1"){inaktiv1.style.color = "#b0b1b4";}else{inaktiv1.style.color = "#59585C";}
    if(id != "bildNavi2"){inaktiv2.style.color = "#b0b1b4";}else{inaktiv2.style.color = "#59585C";}
    if(id != "bildNavi3"){inaktiv3.style.color = "#b0b1b4";}else{inaktiv3.style.color = "#59585C";}
    if(id != "bildNavi4"){inaktiv4.style.color = "#b0b1b4";}else{inaktiv4.style.color = "#59585C";}
    if(id != "bildNavi5"){inaktiv5.style.color = "#b0b1b4";}else{inaktiv5.style.color = "#59585C";}
    if(id != "bildNavi6"){inaktiv6.style.color = "#b0b1b4";}else{inaktiv6.style.color = "#59585C";}
    if(id != "bildNavi7"){inaktiv7.style.color = "#b0b1b4";}else{inaktiv7.style.color = "#59585C";}
    if(id != "bildNavi8"){inaktiv8.style.color = "#b0b1b4";}else{inaktiv8.style.color = "#59585C";}
    if(id != "bildNavi9"){inaktiv9.style.color = "#b0b1b4";}else{inaktiv9.style.color = "#59585C";}
    if(id != "bildNavi10"){inaktiv10.style.color = "#b0b1b4";}else{inaktiv10.style.color = "#59585C";}
    if(id != "bildNavi11"){inaktiv11.style.color = "#b0b1b4";}else{inaktiv11.style.color = "#59585C";}
    if(id != "bildNavi12"){inaktiv12.style.color = "#b0b1b4";}else{inaktiv12.style.color = "#59585C";}
    if(id != "bildNavi13"){inaktiv13.style.color = "#b0b1b4";}else{inaktiv13.style.color = "#59585C";}
    if(id != "bildNavi14"){inaktiv14.style.color = "#b0b1b4";}else{inaktiv14.style.color = "#59585C";}
    if(id != "bildNavi15"){inaktiv15.style.color = "#b0b1b4";}else{inaktiv15.style.color = "#59585C";}
    if(id != "bildNavi16"){inaktiv16.style.color = "#b0b1b4";}else{inaktiv16.style.color = "#59585C";}
    if(id != "bildNavi17"){inaktiv17.style.color = "#b0b1b4";}else{inaktiv17.style.color = "#59585C";}
    if(id != "bildNavi18"){inaktiv18.style.color = "#b0b1b4";}else{inaktiv18.style.color = "#59585C";}
    if(id != "bildNavi19"){inaktiv19.style.color = "#b0b1b4";}else{inaktiv19.style.color = "#59585C";}
    if(id != "bildNavi20"){inaktiv20.style.color = "#b0b1b4";}else{inaktiv10.style.color = "#59585C";}
    aktiv.style.color = "#59585C";
}