var dom = (document.getElementById) ? true : false;
var ns5 = (!document.all && dom || window.opera) ? true: false;
var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
var ie4 = (document.all && !dom) ? true : false;
var nodyn = (!ns5 && !ie4 && !ie5 && !dom) ? true : false;

var origWidth, origHeight;

// avoid error of passing event object in older browsers
if (nodyn) { event = "nope" }

///////////////////////  CUSTOMIZE HERE   ////////////////////
var tipFollowMouse= true;	// Do you want tip to move when mouse moves over link?
var tipWidth= 160; // Be sure to set tipWidth wide enough for widest image
var offX= 20;	// how far from mouse to show tip
var offY= 12; 
var tipBgColor= "#FFFFFF"; 
var tipBorderColor= "#94b0dc";
var tipBorderWidth= 3;
var tipBorderStyle= "outset";
var tipPadding= 4;

//// tooltip content goes here (image, description, optional bgColor, optional textcolor)
//var messages = new Array();
//// multi-dimensional arrays containing: 
//// image and text for tooltip
//// optional: bgColor and color to be sent to tooltip
//messages[0] = new Array('/bewegungsanalyse-partner/img/noraxon.png','Here is a red balloon on a white background',"#FFFFFF");
//messages[1] = new Array('/bewegungsanalyse-partner/img/zebris.png','Here is a duck on a light blue background.',"#FFFFFF");
//messages[2] = new Array('/bewegungsanalyse-partner/img/vabene.png','Test description','black','white');

//////////////////////  END OF CUSTOMIZATION AREA  ///////////////////

//// preload images that are to appear in tooltip
//// from arrays above
//if (document.images) {
//	var theImgs = new Array();
//	for (var i=0; i<messages.length; i++) {
//  	theImgs[i] = new Image();
//		theImgs[i].src = messages[i][0];
//  }
//}

var folder = "/bewegungsanalyse-partner/img/";
var startStr = '<table width="' + tipWidth + '"><tr><td align="center" width="100%"><img src="' + folder;
var midStr = '" border="0"></td></tr><tr><td valign="top"></td></tr></table>';

////////////////////////////////////////////////////////////
//  initTip	- initialization for tooltip.
//		Global variables for tooltip. 
//		Set styles
//		Set up mousemove capture if tipFollowMouse set true.
////////////////////////////////////////////////////////////
var tooltip, tipstyle;
function initTip() {
	if (nodyn) return;
	tooltip = (ie4)? document.all['tipDiv']: (ie5||ns5)? document.getElementById('tipDiv'): null;
	tipstyle = tooltip.style;
	if (ie4||ie5||ns5) {	// ns4 would lose all this on rewrites
		tipstyle.width = tipWidth+"px";
		tipstyle.backgroundColor = tipBgColor;
		tipstyle.borderColor = tipBorderColor;
		tipstyle.borderWidth = tipBorderWidth+"px";
		tipstyle.padding = tipPadding+"px";
		tipstyle.borderStyle = tipBorderStyle;
	}
	if (tooltip&&tipFollowMouse) {
		document.onmousemove = trackMouse;
	}
}

/////////////////////////////////////////////////
//  doTooltip function
//			Assembles content for tooltip and writes 
//			it to tipDiv
/////////////////////////////////////////////////
var t1,t2;	// for setTimeouts
var tipOn = false;	// check if over tooltip link
function doTooltip(logoname, evt) {
	if (!tooltip) return;
	if (t1) clearTimeout(t1);	if (t2) clearTimeout(t2);
	tipOn = true;
	// preload image
	var I;
	I = new Image();
	I.src = folder + logoname;

	// set colors
	if (ie4||ie5||ns5) {
		tipstyle.backgroundColor = tipBgColor;
	 	tooltip.innerHTML = startStr + logoname + midStr;
	}
	if (!tipFollowMouse) positionTip(evt);
	else t1=setTimeout("tipstyle.visibility='visible'",100);
}

var mouseX, mouseY;
function trackMouse(evt) {
	standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
	mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
	mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
	if (tipOn) positionTip(evt);
}

/////////////////////////////////////////////////////////////
//  positionTip function
//		If tipFollowMouse set false, so trackMouse function
//		not being used, get position of mouseover event.
//		Calculations use mouseover event position, 
//		offset amounts and tooltip width to position
//		tooltip within window.
/////////////////////////////////////////////////////////////
function positionTip(evt) {
	if (!tipFollowMouse) {
		mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
		mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
	}
	// tooltip width and height
	var tpWd = (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
	var tpHt = (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
	// document area in view (subtract scrollbar width for ns)
	var winWd = (ns5)? window.innerWidth-20+window.pageXOffset: standardbody.clientWidth+standardbody.scrollLeft;
	var winHt = (ns5)? window.innerHeight-20+window.pageYOffset: standardbody.clientHeight+standardbody.scrollTop;
	// check mouse position against tip and window dimensions
	// and position the tooltip 
	if ((mouseX+offX+tpWd)>winWd) tipstyle.left = mouseX-(tpWd+offX)+"px";
	else tipstyle.left = mouseX+offX+"px";
	if ((mouseY+offY+tpHt)>winHt) tipstyle.top = winHt-(tpHt+offY)+"px";
	else tipstyle.top = mouseY+offY+"px";
	if (!tipFollowMouse) t1=setTimeout("tipstyle.visibility='visible'",100);
}

function hideTip() {
	if (!tooltip) return;
	t2=setTimeout("tipstyle.visibility='hidden'",100);
	tipOn = false;
}