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ericjs
10-02-2006, 04:57 PM
Image w/ description tooltip
Author: Sharon Paine
http://www.dynamicdrive.com/dynamicindex4/imagetooltip.htm

Good morning, I am having trouble getting this particular script to function correctly. I haven't managed to tweak it so that it works at all. I am currently working on it offline so there is no functional script to link to but I will paste it here.

This is what i've placed in the <head> of my page.

<script language="javascript" type="text/javascript">
<!--

/*
Image w/ description tooltip- By Dynamic Web Coding (www.dyn-web.com)
Copyright 2002 by Sharon Paine
Visit http://www.dynamicdrive.com for this script
*/

/* IMPORTANT: Put script after tooltip div or
put tooltip div just before </BODY>. */

var dom = (document.getElementById) ? true : false;
var ns5 = ((navigator.userAgent.indexOf("Gecko")>-1) && dom) ? true: false;
var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
var ns4 = (document.layers && !dom) ? true : false;
var ie4 = (document.all && !dom) ? true : false;
var nodyn = (!ns5 && !ns4 && !ie4 && !ie5) ? true : false;

// resize fix for ns4
var origWidth, origHeight;
if (ns4) {
origWidth = window.innerWidth; origHeight = window.innerHeight;
window.onresize = function() { if (window.innerWidth != origWidth || window.innerHeight != origHeight) history.go(0); }
}

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

/////////////////////// CUSTOMIZE HERE ////////////////////
// settings for tooltip
// Do you want tip to move when mouse moves over link?
var tipFollowMouse= false;
// Be sure to set tipWidth wide enough for widest image
var tipWidth= 160;
var offX= 20; // how far from mouse to show tip
var offY= 12;
var tipFontFamily= "Verdana, arial, helvetica, sans-serif";
var tipFontSize= "8pt";
// set default text color and background color for tooltip here
// individual tooltips can have their own (set in messages arrays)
// but don't have to
var tipFontColor= "#000000";
var tipBgColor= "#DDECFF";
var tipBorderColor= "#000080";
var tipBorderWidth= 3;
var tipBorderStyle= "ridge";
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('rackmountindex.jpg','We offer a wide selection of rackmount chassis ranging from appliance to storage and server applications.',"#FFFFFF");

//////////////////// 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];
}
}

// to layout image and text, 2-row table, image centered in top cell
// these go in var tip in doTooltip function
// startStr goes before image, midStr goes between image and text
var startStr = '<table width="' + tipWidth + '"><tr><td align="center" width="100%"><img src="';
var midStr = '" border="0"></td></tr><tr><td valign="top">';
var endStr = '</td></tr></table>';

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

window.onload = initTip;

/////////////////////////////////////////////////
// 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(evt,num) {
if (!tooltip) return;
if (t1) clearTimeout(t1); if (t2) clearTimeout(t2);
tipOn = true;
// set colors if included in messages array
if (messages[num][2]) var curBgColor = messages[num][2];
else curBgColor = tipBgColor;
if (messages[num][3]) var curFontColor = messages[num][3];
else curFontColor = tipFontColor;
if (ns4) {
var tip = '<table bgcolor="' + tipBorderColor + '" width="' + tipWidth + '" cellspacing="0" cellpadding="' + tipBorderWidth + '" border="0"><tr><td><table bgcolor="' + curBgColor + '" width="100%" cellspacing="0" cellpadding="' + tipPadding + '" border="0"><tr><td>'+ startStr + messages[num][0] + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span>' + endStr + '</td></tr></table></td></tr></table>';
tooltip.write(tip);
tooltip.close();
} else if (ie4||ie5||ns5) {
var tip = startStr + messages[num][0] + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span>' + endStr;
tipcss.backgroundColor = curBgColor;
tooltip.innerHTML = tip;
}
if (!tipFollowMouse) positionTip(evt);
else t1=setTimeout("tipcss.visibility='visible'",100);
}

var mouseX, mouseY;
function trackMouse(evt) {
mouseX = (ns4||ns5)? evt.pageX: window.event.clientX + document.body.scrollLeft;
mouseY = (ns4||ns5)? evt.pageY: window.event.clientY + document.body.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 = (ns4||ns5)? evt.pageX: window.event.clientX + document.body.scrollLeft;
mouseY = (ns4||ns5)? evt.pageY: window.event.clientY + document.body.scrollTop;
}
// tooltip width and height
var tpWd = (ns4)? tooltip.width: (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
var tpHt = (ns4)? tooltip.height: (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
// document area in view (subtract scrollbar width for ns)
var winWd = (ns4||ns5)? window.innerWidth-20+window.pageXOffset: document.body.clientWidth+document.body.scrollLeft;
var winHt = (ns4||ns5)? window.innerHeight-20+window.pageYOffset: document.body.clientHeight+document.body.scrollTop;
// check mouse position against tip and window dimensions
// and position the tooltip
if ((mouseX+offX+tpWd)>winWd)
tipcss.left = (ns4)? mouseX-(tpWd+offX): mouseX-(tpWd+offX)+"px";
else tipcss.left = (ns4)? mouseX+offX: mouseX+offX+"px";
if ((mouseY+offY+tpHt)>winHt)
tipcss.top = (ns4)? winHt-(tpHt+offY): winHt-(tpHt+offY)+"px";
else tipcss.top = (ns4)? mouseY+offY: mouseY+offY+"px";
if (!tipFollowMouse) t1=setTimeout("tipcss.visibility='visible'",100);
}

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

//-->
</script>

Basically the default script from the instructions page. (Other than the edited events)

Now this is the script where I want the event to show up.

<a href="http://www.anova.com/rackmount.php" onmouseover="doTooltip(event,0)" onmouseout="hideTip()">
<img src="rackmountindex_small.jpg" border="0" width="100" height="74"><br>Rackmount Chassis</a>

Lastly, here is the code placed right before my </body> tag.

<div id="tipDiv" style="position:absolute; visibility:hidden; z-index:100"></div>

This has been frustrating me for awhile, i've tried to get it to work in some fasion for awhile. If you notice anything that could be the cause of the problem please let me know. :) I appreciate any help given.

I do use one other script on the page and its
Blending Image Slideshow Script (Best seen with IE 4+)
Author: Dynamic Drive
http://www.dynamicdrive.com/dynamicindex14/image4.htm

Thanks, Eric.