var offsetfrommouse=[18,0]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.
var currentimageheight = 1;	// maximum image size.

if (document.getElementById || document.all){
	document.write('<div id="criticalinteractioninfo">');
	document.write('</div>');
}

function getcrittrailobj(){
if (document.getElementById)
return document.getElementById("criticalinteractioninfo").style
else if (document.all)
return document.all.trailimagid.style
}

function getcrittrailobjnostyle(){
if (document.getElementById)
return document.getElementById("criticalinteractioninfo")
else if (document.all)
return document.all.trailimagid
}

function truecritbody(){
return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function showcrittrail(drug,warning,description,parenth,height){

	if (height > 0){
		currentimageheight = height;
	}

	document.onmousemove=followcritmouse;

	interactionHTML = '';

	newHTML = '<div>';
	newHTML = newHTML + '<h3>' + drug + '</h3>';
	newHTML = newHTML + '<h4>' + warning + '</h4>';
	newHTML = newHTML + '<p>' + description + '</p>';
	newHTML = newHTML + '<p>' + parenth + '</p>';
	newHTML = newHTML + '</div>';

	getcrittrailobjnostyle().innerHTML = newHTML;
	getcrittrailobj().visibility="visible";

}

function showcrittrailGroups(drug,warning,description,parenth,groupname, groupmembers, height){

	if (height > 0){
		currentimageheight = height;
	}

	document.onmousemove=followcritmouse;

	interactionHTML = '';

	newHTML = '<div>';
	newHTML = newHTML + '<h3>' + drug + '</h3>';
	newHTML = newHTML + '<h4>' + warning + '</h4>';
	newHTML = newHTML + '<p>' + description + '</p>';
	newHTML = newHTML + '<p>' + parenth + '</p>';
	newHTML = newHTML + '<br/><h4>' + groupname + '</h4>';
	newHTML = newHTML + '<p>' + groupmembers + '</p>';
	newHTML = newHTML + '</div>';

	getcrittrailobjnostyle().innerHTML = newHTML;
	getcrittrailobj().visibility="visible";
}

function hidecrittrail(){
	getcrittrailobj().visibility="hidden"
	document.onmousemove=""
	getcrittrailobj().left="-500px"

}

function followcritmouse(e){

	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]

	var docwidth=document.all? truecritbody().scrollLeft+truecritbody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.min(truecritbody().scrollHeight, truecritbody().clientHeight) : Math.min(document.body.offsetHeight, window.innerHeight)

	//if (document.all){
	//	getcrittrailobjnostyle().innerHTML = 'A = ' + truecritbody().scrollHeight + '<br>B = ' + truecritbody().clientHeight;
	//} else {
	//	getcrittrailobjnostyle().innerHTML = 'C = ' + document.body.offsetHeight + '<br>D = ' + window.innerHeight;
	//}

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < 300){
			xcoord = e.pageX - xcoord - 195; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < (currentimageheight + 0)){
			ycoord += e.pageY - Math.max(0,(0 + currentimageheight + e.pageY - docheight - truecritbody().scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < 300){
			xcoord = event.clientX + truecritbody().scrollLeft - xcoord - 195; // Move to the left side of the cursor
		} else {
			xcoord += truecritbody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (currentimageheight + 0)){
			ycoord += event.clientY + truecritbody().scrollTop - Math.max(0,(0 + currentimageheight + event.clientY - docheight));
		} else {
			ycoord += truecritbody().scrollTop + event.clientY;
		}
	}

	var docwidth=document.all? truecritbody().scrollLeft+truecritbody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.max(truecritbody().scrollHeight, truecritbody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight)

	getcrittrailobj().left=xcoord+"px"
	getcrittrailobj().top=ycoord+"px"

}