Javascript-форум - Помогите разобраться с всплывающейся подсказкой

вот весь код скрипта

<html>
<head>
<title>Подсказка к линку в виде меню, которое само закроется</title>
<style type="text/css">
body { font-family: verdana, arial, helvetica, sans-serif;
font-size: 14px; }
h1 { font-size:18px }
a:link { color:#33c }
a:visited { color:#339 }
/* Style spec's for tooltip */
div#tipDiv {
position:absolute; visibility:hidden; left:0; top:0; z-index:10000;
background-color:#dee7f7; border:1px solid #336;
width:260px; padding:6px;
color:#000; font-size:11px; line-height:1.3;
}
div#tipDiv a:link { color:#33b }
div#tipDiv a:visited { color:#339 }
</style>
<script type="text/javascript">

function doTooltip(e, msg , id) {
if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
Tooltip.clearTimer();
var tip = document.getElementById? document.getElementById(Tooltip.tipID): null;
if ( tip && tip.onmouseout == null ) {
tip.onmouseout = Tooltip.tipOutCheck;
tip.onmouseover = Tooltip.clearTimer;
}
Tooltip.show(e, msg);
}

function hideTip() {
if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
Tooltip.timerId = setTimeout("Tooltip.hide()", 300);
}

// tooltip content variables
var msgTips='<a href="view_fraza3.php?id='+id+'>фразеолог изм</a>" ';

</script>
</head>
<body>

<p><a href="#" onmouseover="doTooltip(event, msgTips)" onmouseout="hideTip()">Линк с подсказкой-меню</a>
</p>

<script >

var dw_event = {

add: function(obj, etype, fp, cap) {
cap = cap || false;
if (obj.addEventListener) obj.addEventListener(etype, fp, cap);
else if (obj.attachEvent) obj.attachEvent("on" + etype, fp);
},

remove: function(obj, etype, fp, cap) {
cap = cap || false;
if (obj.removeEventListener) obj.removeEventListener(etype, fp, cap);
else if (obj.detachEvent) obj.detachEvent("on" + etype, fp);
},

DOMit: function(e) {
e = e? e: window.event;
e.tgt = e.srcElement? e.srcElement: e.target;

if (!e.preventDefault) e.preventDefault = function () { return false; }
if (!e.stopPropagation) e.stopPropagation = function () { if (window.event) window.event.cancelBubble = true; }

return e;
}

}
</script>
<script >
var viewport = {
getWinWidth: function () {
this.width = 0;
if (window.innerWidth) this.width = window.innerWidth - 18;
else if (document.documentElement && document.documentElement.clientWidth)
this.width = document.documentElement.clientWidth;
else if (document.body && document.body.clientWidth)
this.width = document.body.clientWidth;
},

getWinHeight: function () {
this.height = 0;
if (window.innerHeight) this.height = window.innerHeight - 18;
else if (document.documentElement && document.documentElement.clientHeight)
this.height = document.documentElement.clientHeight;
else if (document.body && document.body.clientHeight)
this.height = document.body.clientHeight;
},

getScrollX: function () {
this.scrollX = 0;
if (typeof window.pageXOffset == "number") this.scrollX = window.pageXOffset;
else if (document.documentElement && document.documentElement.scrollLeft)
this.scrollX = document.documentElement.scrollLeft;
else if (document.body && document.body.scrollLeft)
this.scrollX = document.body.scrollLeft;
else if (window.scrollX) this.scrollX = window.scrollX;
},

getScrollY: function () {
this.scrollY = 0;
if (typeof window.pageYOffset == "number") this.scrollY = window.pageYOffset;
else if (document.documentElement && document.documentElement.scrollTop)
this.scrollY = document.documentElement.scrollTop;
else if (document.body && document.body.scrollTop)
this.scrollY = document.body.scrollTop;
else if (window.scrollY) this.scrollY = window.scrollY;
},

getAll: function () {
this.getWinWidth(); this.getWinHeight();
this.getScrollX(); this.getScrollY();
}

}

</script>
<script >

var Tooltip = {
followMouse: true,
offX: 8,
offY: 12,
tipID: "tipDiv",
showDelay: 100,
hideDelay: 200,

ready:false, timer:null, tip:null,

init: function() {
if ( document.createElement && document.body && typeof document.body.appendChild != "undefined" ) {
if ( !document.getElementById(this.tipID) ) {
var el = document.createElement("DIV");
el.id = this.tipID; document.body.appendChild(el);
}
this.ready = true;
}
},

show: function(e, msg) {
if (this.timer) { clearTimeout(this.timer); this.timer = 0; }
this.tip = document.getElementById( this.tipID );
if (this.followMouse) // set up mousemove
dw_event.add( document, "mousemove", this.trackMouse, true );
this.writeTip(""); // for mac ie
this.writeTip(msg);
viewport.getAll();
this.positionTip(e);
this.timer = setTimeout("Tooltip.toggleVis('" + this.tipID + "', 'visible')", this.showDelay);
},

writeTip: function(msg) {
if ( this.tip && typeof this.tip.innerHTML != "undefined" ) this.tip.innerHTML = msg;
},

positionTip: function(e) {
if ( this.tip && this.tip.style ) {
// put e.pageX/Y first! (for Safari)
var x = e.pageX? e.pageX: e.clientX + viewport.scrollX;
var y = e.pageY? e.pageY: e.clientY + viewport.scrollY;

if ( x + this.tip.offsetWidth + this.offX > viewport.width + viewport.scrollX ) {
x = x - this.tip.offsetWidth - this.offX;
if ( x < 0 ) x = 0;
} else x = x + this.offX;

if ( y + this.tip.offsetHeight + this.offY > viewport.height + viewport.scrollY ) {
y = y - this.tip.offsetHeight - this.offY;
if ( y < viewport.scrollY ) y = viewport.height + viewport.scrollY - this.tip.offsetHeight;
} else y = y + this.offY;

this.tip.style.left = x + "px"; this.tip.style.top = y + "px";
}
},

hide: function() {
if (this.timer) { clearTimeout(this.timer); this.timer = 0; }
this.timer = setTimeout("Tooltip.toggleVis('" + this.tipID + "', 'hidden')", this.hideDelay);
if (this.followMouse) // release mousemove
dw_event.remove( document, "mousemove", this.trackMouse, true );
this.tip = null;
},

toggleVis: function(id, vis) { // to check for el, prevent (rare) errors
var el = document.getElementById(id);
if (el) el.style.visibility = vis;
},

trackMouse: function(e) {
e = dw_event.DOMit(e);
Tooltip.positionTip(e);
}

}

Tooltip.init();
</script>
<script type="text/javascript">

// adjust horizontal and vertical offsets here
// (distance from mouseover event which activates tooltip)
Tooltip.offX = 4;
Tooltip.offY = 4;
Tooltip.followMouse = false; // must be turned off for hover-tip

Tooltip.tipOutCheck = function(e) {
e = dw_event.DOMit(e);
// is element moused into contained by tooltip?
var toEl = e.relatedTarget? e.relatedTarget: e.toElement;
if ( this != toEl && !contained(toEl, this) ) Tooltip.hide();
}

// returns true of oNode is contained by oCont (container)
function contained(oNode, oCont) {
if (!oNode) return; // in case alt-tab away while hovering (prevent error)
while ( oNode = oNode.parentNode ) if ( oNode == oCont ) return true;
return false;
}

Tooltip.timerId = 0;
Tooltip.clearTimer = function() {
if (Tooltip.timerId) { clearTimeout(Tooltip.timerId); Tooltip.timerId = 0; }
}

Tooltip.unHookHover = function () {
var tip = document.getElementById? document.getElementById(Tooltip.tipID): null;
if (tip) {
tip.onmouseover = null;
tip.onmouseout = null;
tip = null;
}
}

dw_event.add(window, "unload", Tooltip.unHookHover, true);
</script>
</body>
</html>