var firstInit = true;

function showGlossaryText(glosId, sLang){
	var cresult;
	
	var xmlHttpReq = false;
	// Mozilla/Safari
	if (window.XMLHttpRequest) {
		xmlHttpReq = new XMLHttpRequest();
	}
	// IE
	else if (window.ActiveXObject) {
		xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
	}
	xmlHttpReq.open('POST', 'getGlossarytext.asp', true);
	xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	xmlHttpReq.onreadystatechange = function() {
		if (xmlHttpReq.readyState == 4) {
			cresult = xmlHttpReq.responseText;
			showGlossaryDiv(cresult);
		}
	}
	xmlHttpReq.send('gid='+glosId+'&lng='+sLang);
}

function showGlossaryDiv(sText){
	var glosDivEl = document.getElementById('glosDiv');
	var pText = '';
	var pTitle = '';
	if (sText != ''){
		var splitCharPos = sText.indexOf('|');
		pTitle = sText.substr(0,splitCharPos);
		pText = sText.substr(splitCharPos + 1);
	}
	if(firstInit){
		glosDivEl.style.left = findPos(document.getElementById('ScreenBox'))[0] + 350 + 'px';
		glosDivEl.style.top = findPos(document.getElementById('ScreenBox'))[1] + 300 + 'px';
		firstInit = false;
	}
	
	if(glosDivEl){
		document.getElementById('glosTitle').innerHTML = pTitle;
		document.getElementById('glosText').innerHTML = pText;
		glosDivEl.style.display='block';
	}
}

function findPos(oEl) {
	if(oEl.offsetParent) {
		for( var posX = 0, posY = 0; oEl.offsetParent; oEl = oEl.offsetParent ) {
			posX += oEl.offsetLeft;
			posY += oEl.offsetTop;
		}
		return [ posX, posY ];
	} else {
		return [ oEl.x, oEl.y ];
	}
}

function Browser() {

	var ua, s, i;

	this.isIE    = false;
	this.isNS    = false;
	this.version = null;

	ua = navigator.userAgent;

	s = "MSIE";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isIE = true;
		this.version = parseFloat(ua.substr(i + s.length));
		return;
	}

	s = "Netscape6/";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isNS = true;
		this.version = parseFloat(ua.substr(i + s.length));
		return;
	}
	s = "Gecko";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isNS = true;
		this.version = 6.1;
		return;
	}
}

var browser = new Browser();
var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, id) {
	var el;
	var x, y;
	if (id)
		dragObj.elNode = document.getElementById(id);
	else {
		if (browser.isIE)
		dragObj.elNode = window.event.srcElement;
		if (browser.isNS)
		dragObj.elNode = event.target;
		if (dragObj.elNode.nodeType == 3)
		dragObj.elNode = dragObj.elNode.parentNode;
	}
	if (browser.isIE) {
		x = window.event.clientX + document.documentElement.scrollLeft
		+ document.body.scrollLeft;
		y = window.event.clientY + document.documentElement.scrollTop
		+ document.body.scrollTop;
	}
	if (browser.isNS) {
		x = event.clientX + window.scrollX;
		y = event.clientY + window.scrollY;
	}
	dragObj.cursorStartX = x;
	dragObj.cursorStartY = y;
	dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
	dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);
	if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
	if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;
	dragObj.elNode.style.zIndex = ++dragObj.zIndex;
	if (browser.isIE) {
		document.attachEvent("onmousemove", dragGo);
		document.attachEvent("onmouseup",   dragStop);
		window.event.cancelBubble = true;
		window.event.returnValue = false;
	}
	if (browser.isNS) {
		document.addEventListener("mousemove", dragGo,   true);
		document.addEventListener("mouseup",   dragStop, true);
		event.preventDefault();
	}
}

function dragGo(event) {

	var x, y;
	if (browser.isIE) {
		x = window.event.clientX + document.documentElement.scrollLeft
		+ document.body.scrollLeft;
		y = window.event.clientY + document.documentElement.scrollTop
		+ document.body.scrollTop;
	}
	if (browser.isNS) {
		x = event.clientX + window.scrollX;
		y = event.clientY + window.scrollY;
	}
	dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
	dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

	if (browser.isIE) {
		window.event.cancelBubble = true;
		window.event.returnValue = false;
	}
	if (browser.isNS)
		event.preventDefault();
}

function dragStop(event) {
	if (browser.isIE) {
		document.detachEvent("onmousemove", dragGo);
		document.detachEvent("onmouseup",   dragStop);
	}
	if (browser.isNS) {
		document.removeEventListener("mousemove", dragGo,   true);
		document.removeEventListener("mouseup",   dragStop, true);
	}
}