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++;
		}
	}
}
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) {
	var currentOpac = 100;
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}
	opacity(id, currentOpac, opacEnd, millisec)
}
function setInfo(head,info){
	var catchinfohead = document.getElementById("headDiv");
	var catchinfotext = document.getElementById("infoDiv");
	catchinfohead.innerHTML = head;
	catchinfotext.innerHTML = info;
}
function simplePreload(){ 
  var args = simplePreload.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++){
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];   	
  }
}
function blendEdu(x, header, input, hyper){
	var ghostOn = document.getElementById("ghostDiv");
	var edu1On = document.getElementById("edu1Div");
    var head = document.getElementById("eduhead");
	var text = document.getElementById("edutext");
	var links = document.getElementById("edulink");
	if(x=="edu1On"){
		ghostOn.style.visibility = "visible";
		edu1On.style.visibility = "visible";
		head.innerHTML = header;
		text.innerHTML = input;
		links.innerHTML = hyper;
		}
	if(!x){
		edu1On.style.visibility = "hidden";
		ghostOn.style.visibility = "hidden";
		}	
	}
function setOver(x) {	
	var catchmenu = document.getElementById("menuDiv");
	var menu = x;
	if(menu=="on"){
		catchmenu.style.visibility = "visible";
	}	
	else{
		catchmenu.style.visibility = "hidden";
	}
}
function setPopup(popup, divbg, title, exhibition, artheight, artwidth, frameheight, framewidth, method, features, details){
	var ghost = document.getElementById("ghoststoreDiv");
	var getpopup = document.getElementById("popupDiv");	
	var titleinfoinput = document.getElementById("titleinfoDiv");
	var exhibitioninput = document.getElementById("exhibitionDiv");
	var artheightinput = document.getElementById("artheightDiv");
	var artwidthinput = document.getElementById("artwidthDiv");
	var frameheightinput = document.getElementById("frameheightDiv");
	var framewidthinput = document.getElementById("framewidthDiv");
	var methodinput = document.getElementById("methodDiv");
	var featuresinput = document.getElementById("featuresDiv");
	var detailsinput = document.getElementById("detailsDiv");	
	var x = popup;
	if(x=="on"){
		ghost.style.visibility = "visible";
		getpopup.style.visibility = "visible";
		document.getElementById("popupImg").src = divbg;		
		titleinfoinput.innerHTML = title;
		exhibitioninput.innerHTML = exhibition;
		artheightinput.innerHTML = artheight;
		artwidthinput.innerHTML = artwidth;
		frameheightinput.innerHTML = frameheight;
		framewidthinput.innerHTML = framewidth;
		methodinput.innerHTML = method;
		featuresinput.innerHTML = features;
		detailsinput.innerHTML = details;
	}	
	if(!x){
		ghost.style.visibility = "hidden";
		getpopup.style.visibility = "hidden";
	}
}
function closeDivs(){
	var getpopup = document.getElementById("popupDiv");	
	var edu1On = document.getElementById("edu1Div");
	setOver();
	if(getpopup){
		setPopup();
	}
	if(edu1On){
		blendEdu();
	}	
}
function init(){
	var menuOn = document.getElementById("motioncontainer");
	var contact = document.getElementById("contacttextDiv");
	var catchmenu = document.getElementById("menuDiv");
	var portfoliocontent = document.getElementById("portfoliocontentDiv");
	if (menuOn){
		fillup();
		catchmenu.style.visibility = "visible";
	}	
	else{
		if(document.layers){
        	window.captureEvents(Event.MOUSEUP);
        	window.onmouseup=closeDivs;
		} 
		else{
        	document.onmouseup=closeDivs;
		}		
	}
	if (portfoliocontent){
		catchmenu.style.visibility = "visible";
	}
	if(contact){
		getStore();
	}
}
window.onload = init;