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;
		}
	
	/*For when in mobile mode - ensures the left edge isn't a negative
	number and so the div is out the left side of the screen*/	
	var adjustedX = cX-130;
	if(adjustedX < 0){
		adjustedX = 10;
	}
	
	d.style.left = adjustedX + "px";
	d.style.top = (cY-80) + "px";
}

function HideContent(img){
	var div = img.parentNode;
	div.style.display = "none";
}

function ShowContent(d) {

	hideAllTooltips();
	if(d.length < 1) { return; }
	
	var dd = document.getElementById(d);

	AssignPosition(dd);
	dd.style.display = "block";
}

function hideAllTooltips(){
	var divs = document.getElementsByTagName("div");
	for(var i=0; i<divs.length; i++){
		if(divs[i].id.substr(0,2) == "tt"){
			divs[i].style.display = "none";
		}
	}
}

function ReverseContentDisplay(d) {
	if(d.length < 1) { return; }
	var dd = document.getElementById(d);
	AssignPosition(dd);
	if(dd.style.display == "none") { dd.style.display = "block"; }
	else { dd.style.display = "none"; }
}