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++;
	}
}
var cX = 0; var cY = 0; var rX = 0; var rY = 0;
function UpdateCursorPosition(e){ cX = e.pageX; cY = e.pageY;}
function UpdateCursorPositionDocAll(e){ cX = event.clientX; cY = event.clientY;}
if(document.all) { document.onmousemove = UpdateCursorPositionDocAll; }
else { document.onmousemove = UpdateCursorPosition; }
function AssignPosition(d) {
if(self.pageYOffset) {
	rX = self.pageXOffset;
	rY = self.pageYOffset;
	}
else if(document.documentElement && document.documentElement.scrollTop) {
	rX = document.documentElement.scrollLeft;
	rY = document.documentElement.scrollTop;
	}
else if(document.body) {
	rX = document.body.scrollLeft;
	rY = document.body.scrollTop;
	}
if(document.all) {
	cX += rX; 
	cY += rY;
	}
/*
d.style.left = (cX+10) + "px";
d.style.top = (cY+10) + "px";
*/

d.style.left = (340) + "px";
d.style.top = (450) + "px";

for(i=1;i<=2;i++){
	tr = document.getElementById('dd'+i);
	if(tr!=d){
	  tr.style["display"]="none";
	}
  }
}
function HideContent(d,id,opacEnd,millisec)
{
 if(d=="layer1")
  {
  	document.getElementById('layer1').style.display = "none";
  }
  if(d=="layer2")
  {
  	document.getElementById('layer2').style.display = "none";
  }
  
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;
		//document.getElementById(id).style.filter = "alpha(opacity=" + opacity* 100 + ")";
		opacity(id, currentOpac, opacEnd, millisec)
	}
}
function ShowContent(d,id,opacEnd,millisec)
{
	
	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;
		//document.getElementById(id).style.filter = "alpha(opacity=" + opacity* 100 + ")";
		opacity(id, currentOpac, opacEnd, millisec)
	}
/*if(d.length < 1) { return; }*/
//alert();
if(d=="layer1")
  {
	document.getElementById('layer1').style.display="block";
	document.getElementById('layer2').style.display="none";
  }
  else
  {
	  document.getElementById('layer2').style.display="block";
	document.getElementById('layer1').style.display="none";
  }
/*var dd = document.getElementById(d);
dd.style.display = "block";*/
}
function ReverseContentDisplay(d) {
if(d.length < 1) { return; }
var dd = document.getElementById(d);

if(dd.style.display == "none") { dd.style.display = "block"; }
else { dd.style.display = "none"; }
}