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)
}

var contentPos = 0;
var contentPosTo = 150;
var goTo = "";

function slideContent(contentPosTo, goTo)
{
	if (contentPos < contentPosTo-2 || contentPos > contentPosTo+2) {
			contentPos = contentPos + (contentPosTo-contentPos)/(3.1);
			tmt_DivMove('content', 0, (contentPos + 95), -20000);
			tmt_DivMove('kopDIV', 0, 20, contentPos + 75);
			tmt_DivMove('FotoTD', 0, 20, contentPos);
			
			setTimeout("slideContent(" + contentPosTo + ", '" + goTo + "')", 10);
	}	else  {
			contentPos = contentPosTo;
			tmt_DivMove('content', 0, (contentPos  + 95), -20000);
			tmt_DivMove('kopDIV', 0, 20, contentPos + 75);
			tmt_DivMove('FotoTD', 0, 20, contentPos);
			if (goTo != "niet") {
				window.location=goTo;
			}
	} 
}

var blendPos = 0;
var blendTo  = 75;

function blendKop(blendTo)
{
	if (blendPos < blendTo-2 || blendPos > blendTo+2) {
			blendPos = blendPos + (blendTo-blendPos)/(14.1);
			changeOpac(blendPos, 'kopTbl');
			setTimeout("blendKop(" + blendTo + ")", 10);
	}	else  {
			blendPos = blendTo;
			changeOpac(blendPos, 'kopTbl');
	} 
}

function tmt_findObj(n){
	var x,t; if((n.indexOf("?"))>0&&parent.frames.length){t=n.split("?");
	x=eval("parent.frames['"+t[1]+"'].document.getElementById('"+t[0]+"')");
	}else{x=document.getElementById(n)}return x;
}

function tmt_DivMove(theDiv, l, t, h){
	
	var x = (document.layers) ? ".left" : ".style.left";
	var y = (document.layers) ? ".top" : ".style.top";
	var height = (document.layers) ? ".height" : ".style.height";
	var fun = (document.getElementById) ? "tmt_findObj" : "MM_findObj";
	var obj = eval(fun+"(theDiv)");if(obj){
	if (t > -10000) { eval(fun+"('"+theDiv+"')"+y+"="+t); }
	if (l > -10000) { eval(fun+"('"+theDiv+"')"+x+"="+l); }
	if (h > -10000) { 
	if (h < 0) {h = 0};
	eval(fun+"('"+theDiv+"')"+height+"="+h); 
	if (h < 2) {
		MM_showHideLayers(theDiv,'','hide')
	} else {
		MM_showHideLayers(theDiv,'','show')
	}
	}
	}
}