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	tooltipxhr.js - jscancer - Javascript crap (relatively small)
	git clone git://git.codemadness.org/jscancer
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	tooltipxhr.js (2430B)
	---
	1 (function() {
	2 var open = false, timershow;
	3 var el = document.createElement("div");
	4 el.style.display = "none";
	5 el.className = "tooltip";
	6 document.body.appendChild(el);
	7
	8 var position = function(x, y) {
	9 // position optimally, try to adjust when outside window.
	10 if (y + el.offsetHeight + 32 > window.innerHeight)
	11 el.style.top = String(y - el.offsetHeight - 18) …
	12 else
	13 el.style.top = String(y + 18) + "px"; // + space…
	14 // NOTE, this is a mess: document.body.clientWidth exclu…
	15 // window.innerWidth is the window including scroll…
	16 // window.outerWidth is the window including scroll…
	17 if (x + el.offsetWidth >= document.body.parentNode.offse…
	18 el.style.right = "0px";
	19 el.style.left = "auto";
	20 } else {
	21 el.style.left = String(x) + "px";
	22 el.style.right = "auto";
	23 }
	24 };
	25 document.addEventListener("keyup", function(e) {
	26 // close on escape key.
	27 if (e.which === 27) {
	28 open = false;
	29 el.style.display = "none";
	30 clearTimeout(timershow);
	31 }
	32 });
	33 // don't close if mouse over popup or it's children.
	34 document.addEventListener("mouseover", function(e) {
	35 for (var p = e.target; !!p.parentNode; p = p.parentNode)
	36 if (p === el)
	37 return;
	38 open = false;
	39 el.style.display = "none";
	40 clearTimeout(timershow);
	41 return !!e.stopPropagation();
	42 }, false);
	43 document.addEventListener("mousemove", function(e) {
	44 if (open)
	45 return position(e.clientX, e.clientY);
	46 clearTimeout(timershow);
	47 timershow = setTimeout((function(target, x, y) {
	48 return function() {
	49 var uri = null;
	50 for (var p = target; !!p.parentNode; p =…
	51 if ((uri = p.getAttribute("data-…
	52 break;
	53 if (uri === null)
	54 return;
	55
	56 var xhr = new(XMLHttpRequest);
	57 xhr.open("GET", uri + ((uri.indexOf("?")…
	58 xhr.setRequestHeader("X-Requested-With",…
	59 xhr.onreadystatechange = function() {
	60 if (xhr.readyState != 4 \|\| [ 0, …
	61 return;
	62 el.innerHTML = xhr.responseText …
	63 el.style.display = "block";
	64 open = true;
	65 position(x, y);
	66 };
	67 xhr.timeout = 10000;
	68 xhr.overrideMimeType("text/html");
	69 xhr.send();
	70 };
	71 })(e.target, e.clientX, e.clientY), 500);
	72 return !!e.stopPropagation();
	73 }, false);
	74 })();