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// uniTip - written by Nathan Ford for Unit Interactive
//
// uniTip is based on qTip:
// qTip - CSS Tool Tips - by Craig Erskine
// http://qrayg.com
var uniTipTag = "a,img,div"; //Which tag do you want to uniTip-ize? Keep it lowercase. No spaces around commas.//
var uniTipClass = "tip"; //Which classes do you want to uniTip-ize? If you leave this blank, then all the tags designated above will get uniTip-ized. Match case. No spaces around commas.
var uniTipX = 0; // X offset from cursor//
var uniTipY = 15; // Y offset from cursor//
//______________________________________________There's no need to edit anything below this line//
var offsetX = uniTipX, offsetY = uniTipY, elewidth = null, eleheight = null, tipid = null, tiptop = null, tipbot = null, tipcapin=null, tippointin=null, altText=false;
var x=0, y=0, WinWidth=0, WinHeight=0, TipWidth=0, TipHeight=0, CapHeight=0, PointHeight=0;
// first, find all the correct elements
init = function () {
var elementList = uniTipTag.split(",");
for(var j = 0; j < elementList.length; j++) {
var elements = document.getElementsByTagName(elementList[j]);
if(elements) {
for (var i = 0; i < elements.length; i ++) {
if (uniTipClass != '') {
var elClass = elements[i].className;
var elClassList = uniTipClass.split(",");
for (var h=0; h < elClassList.length; h++) { if (elClass.match(elClassList[h])) unitipize(elements[i]); }
} else unitipize(elements[i]);
}
}
}
}
// next, add the tooltip function to those elements
unitipize = function (element) {
var a = element;
altText = (a.alt && a.getAttribute("alt") != '' ) ? true : false;
var sTitle = (altText == true) ? a.getAttribute("alt") : a.getAttribute("title");
if(sTitle) {
a.onmouseover = function() {build(a, sTitle);};
a.onmouseout = function() {hide(a, sTitle);};
}
}
// now, we build the tooltip
build = function (a, sTitle) {
if (a.title) a.title = "";
if (altText==true) a.alt = "";
var tipContainer = document.createElement("div");
tipContainer.setAttribute("id", "unitip");
document.body.appendChild(tipContainer);
var tipContainerTop = document.createElement("div");
tipContainerTop.setAttribute("id", "unitippoint");
tipContainer.appendChild(tipContainerTop);
var tipContainerMid = document.createElement("div");
tipContainerMid.setAttribute("id", "unitipmid");
tipContainer.appendChild(tipContainerMid);
var tipContainerBot = document.createElement("div");
tipContainerBot.setAttribute("id", "unitipcap");
tipContainer.appendChild(tipContainerBot);
tipid = document.getElementById("unitip");
tippoint = document.getElementById("unitippoint");
tipmid = document.getElementById("unitipmid");
tipcap = document.getElementById("unitipcap");
document.getElementById("unitipmid").innerHTML = sTitle;
tipid.style.display = "block";
elewidth = document.getElementById("unitipmid").offsetWidth;
eleheight = document.getElementById("unitip").offsetHeight;
WinWidth = document.body.offsetWidth;
WinHeight = (document.body.clientHeight < document.documentElement.clientHeight) ? document.body.clientHeight : document.documentElement.clientHeight;
CapHeight = document.getElementById('unitipcap').offsetHeight;
PointHeight = document.getElementById('unitippoint').offsetHeight;
if (typeof pngfix=="function") { // if IE, rebuilds wraps unitippoint and unitipcap in outer div
if (tippoint.currentStyle.backgroundImage.match(/\.png/gi)) {
var tipP = tippoint.innerHTML;
tippoint.id = 'unitipP'; // switch unitippoint to outer div
tippoint.style.overflow = "hidden";
tippoint.style.height = PointHeight + "px";
tippoint.style.width = elewidth + "px";
tippoint.style.position = "relative";
tippoint.style.display = "block";
tippoint.innerHTML = '' + tipP + '
'; // inject unitippoint
tippointin = document.getElementById("unitippoint"); // redefine styles for unitippoint to fit filter image
tippointin.style.width = (elewidth * 2) + "px";
tippointin.style.height = (PointHeight * 2) + "px";
tippointin.style.backgroundImage = tippoint.style.backgroundImage;
tippointin.style.position = "absolute";
tippoint.style.backgroundImage = "none";
}
if (tipcap.currentStyle.backgroundImage.match(/\.png/gi)) {
var tipC = tipcap.innerHTML;
tipcap.id = 'unitipC';
tipcap.style.overflow = "hidden";
tipcap.style.height = CapHeight + "px";
tipcap.style.width = elewidth + "px";
tipcap.style.position = "relative";
tipcap.style.display = "block";
tipcap.innerHTML = '' + tipP + '
';
tipcapin = document.getElementById("unitipcap");
tipcapin.style.height = (CapHeight * 2) + "px";
tipcapin.style.backgroundImage = tipcap.style.backgroundImage;
tipcapin.style.position = "absolute";
tipcap.style.backgroundImage = "none";
}
pngfix(); // png fix
}
document.onmousemove = function (evt) {move (evt)};
}
// now, we track the mouse and make the tooltip follow
move = function (evt) {
if (window.event) {
x = window.event.clientX;
y = window.event.clientY;
if (document.documentElement.scrollLeft) tipid.style.left = (TipWidth >= WinWidth ) ? ((x - offsetX - elewidth) + document.documentElement.scrollLeft) + "px" : (x + offsetX + document.documentElement.scrollLeft) + "px";
else tipid.style.left = (TipWidth >= WinWidth ) ? ((x - offsetX - elewidth) + document.body.scrollLeft) + "px" : (x + offsetX + document.body.scrollLeft) + "px";
if (document.documentElement.scrollTop) tipid.style.top = (TipHeight >= WinHeight) ? ((y - offsetY - eleheight) + document.documentElement.scrollTop) + "px" : (y + offsetY + document.documentElement.scrollTop) + "px";
else tipid.style.top = (TipHeight >= WinHeight) ? ((y - offsetY - eleheight) + document.body.scrollTop) + "px" : (y + offsetY + document.body.scrollTop) + "px";
} else {
x = evt.clientX;
y = evt.clientY;
tipid.style.left = (TipWidth >= WinWidth ) ? ((x - offsetX - elewidth) + window.scrollX) + "px" : (x + offsetX + window.scrollX) + "px";
tipid.style.top = (TipHeight >= WinHeight) ? ((y - offsetY - eleheight) + window.scrollY) + "px" : (y + offsetY + window.scrollY) + "px";
}
TipWidth = x + elewidth + 20;
TipHeight = y + eleheight + 20;
if (TipHeight >= WinHeight ) { // rearrange the inner divs [123 to 321]
tipid.removeChild(tippoint);
tipid.removeChild(tipmid);
tipid.removeChild(tipcap);
tipid.appendChild(tipcap);
tipid.appendChild(tipmid);
tipid.appendChild(tippoint);
} else { // rearrange the inner divs [321 to 123]
tipid.removeChild(tippoint);
tipid.removeChild(tipmid);
tipid.removeChild(tipcap);
tipid.appendChild(tippoint);
tipid.appendChild(tipmid);
tipid.appendChild(tipcap);
}
if (TipHeight >= WinHeight) {
if (document.getElementById('uniTipP')) {
tippointin.style.left = (TipWidth >= WinWidth ) ? "-" + elewidth + "px" : "0px";
tippointin.style.top = "-" + PointHeight + "px";
} else tippoint.style.backgroundPosition = (TipWidth >= WinWidth ) ? "right bottom" : "left bottom";
if (document.getElementById('uniTipC')) tipcapin.style.top = "-" + CapHeight + "px";
else tipcap.style.backgroundPosition = "0 -" + CapHeight + "px";
} else {
if (document.getElementById('uniTipP')) {
tippointin.style.left = (TipWidth >= WinWidth ) ? "-" + elewidth + "px" : "0px";
tippointin.style.top = "0px";
} else tippoint.style.backgroundPosition = (TipWidth >= WinWidth ) ? "right top" : "left top";
if (document.getElementById('uniTipC')) tipcapin.style.top = "0px";
else tipcap.style.backgroundPosition = "0 0";
}
}
// lastly, hide the tooltip
hide = function (a, sTitle) {
document.getElementById("unitipmid").innerHTML = "";
document.onmousemove = '';
document.body.removeChild(tipid);
tipid.style.display = "none";
if (altText==false) a.setAttribute("title", sTitle);
else a.setAttribute("alt", sTitle);
altText=false;
}
// add the event to the page
if (window.addEventListener) window.addEventListener("load", init, false);
if (window.attachEvent) window.attachEvent("onload", init);