/* --- BoxOver ---  
 --- v 2.1 17th June 2006
By Oliver Bryant with help of Matthew Tagg
http://boxover.swazz.org */

if (typeof document.attachEvent != 'undefined') {
	window.attachEvent('onload', init);
	document.attachEvent('onmousemove', moveMouse);
	document.attachEvent('onclick', checkMove);
}
else {
	window.addEventListener('load', init, false);
	document.addEventListener('mousemove', moveMouse, false);
	document.addEventListener('click', checkMove, false);
}

var oDv = document.createElement("div");
var dvHdr = document.createElement("div");
var dvBdy = document.createElement("div");
var windowlock, boxMove, fixposx, fixposy, lockX, lockY, fixx, fixy, ox, oy, boxLeft, boxRight, boxTop, boxBottom, evt, mouseX, mouseY, boxOpen, totalScrollTop, totalScrollLeft;
boxOpen = false;
ox = 10;
oy = 10;
lockX = 0;
lockY = 0;

function init() {
	oDv.appendChild(dvHdr);
	oDv.appendChild(dvBdy);
	oDv.style.position = "absolute";
	oDv.style.visibility = 'hidden';
	document.body.appendChild(oDv);
}

function defHdrStyle() {
	dvHdr.innerHTML = '<img  style="vertical-align:middle"  src="info.gif">&nbsp;&nbsp;' + dvHdr.innerHTML;
	dvHdr.style.fontWeight = 'bold';
	dvHdr.style.width = '150px';
	dvHdr.style.fontFamily = 'arial';
	dvHdr.style.border = '1px solid #A5CFE9';
	dvHdr.style.padding = '3';
	dvHdr.style.fontSize = '11';
	dvHdr.style.color = '#4B7A98';
	dvHdr.style.background = '#D5EBF9';
	dvHdr.style.filter = 'alpha(opacity=85)'; // IE
	dvHdr.style.opacity = '0.85'; // FF
}

function defBdyStyle() {
	dvBdy.style.borderBottom = '1px solid #A5CFE9';
	dvBdy.style.borderLeft = '1px solid #A5CFE9';
	dvBdy.style.borderRight = '1px solid #A5CFE9';
	dvBdy.style.width = '150px';
	dvBdy.style.fontFamily = 'arial';
	dvBdy.style.fontSize = '11';
	dvBdy.style.padding = '3';
	dvBdy.style.color = '#1B4966';
	dvBdy.style.background = '#FFFFFF';
	dvBdy.style.filter = 'alpha(opacity=85)'; // IE
	dvBdy.style.opacity = '0.85'; // FF
}

function checkElemBO(txt) {
	if (!txt || typeof(txt) != 'string') return false;
	if ((txt.indexOf('header') > -1) && (txt.indexOf('body') > -1) && (txt.indexOf('[') > -1) && (txt.indexOf('[') > -1)) return true;
	else return false;
}

function scanBO(curNode) {
	if (checkElemBO(curNode.title)) {
		curNode.boHDR = getParam('header', curNode.title);
		curNode.boBDY = getParam('body', curNode.title);
		curNode.boCSSBDY = getParam('cssbody', curNode.title);
		curNode.boCSSHDR = getParam('cssheader', curNode.title);
		curNode.IEbugfix = (getParam('hideselects', curNode.title) == 'on') ? true: false;
		curNode.fixX = parseInt(getParam('fixedrelx', curNode.title));
		curNode.fixY = parseInt(getParam('fixedrely', curNode.title));
		curNode.absX = parseInt(getParam('fixedabsx', curNode.title));
		curNode.absY = parseInt(getParam('fixedabsy', curNode.title));
		curNode.offY = (getParam('offsety', curNode.title) != '') ? parseInt(getParam('offsety', curNode.title)) : 10;
		curNode.offX = (getParam('offsetx', curNode.title) != '') ? parseInt(getParam('offsetx', curNode.title)) : 10;
		curNode.fade = (getParam('fade', curNode.title) == 'on') ? true: false;
		curNode.fadespeed = (getParam('fadespeed', curNode.title) != '') ? getParam('fadespeed', curNode.title) : 0.04;
		curNode.delay = (getParam('delay', curNode.title) != '') ? parseInt(getParam('delay', curNode.title)) : 0;
		if (getParam('requireclick', curNode.title) == 'on') {
			curNode.requireclick = true;
			document.all ? curNode.attachEvent('onclick', showHideBox) : curNode.addEventListener('click', showHideBox, false);
			document.all ? curNode.attachEvent('onmouseover', hideBox) : curNode.addEventListener('mouseover', hideBox, false);
		}
		else { // Note : if requireclick is on the stop clicks are ignored   			
			if (getParam('doubleclickstop', curNode.title) != 'off') {
				document.all ? curNode.attachEvent('ondblclick', pauseBox) : curNode.addEventListener('dblclick', pauseBox, false);
			}
			if (getParam('singleclickstop', curNode.title) == 'on') {
				document.all ? curNode.attachEvent('onclick', pauseBox) : curNode.addEventListener('click', pauseBox, false);
			}
		}
		curNode.windowLock = getParam('windowlock', curNode.title).toLowerCase() == 'off' ? false: true;
		curNode.title = '';
		curNode.hasbox = 1;
	}
	else curNode.hasbox = 2;
}

function getParam(param, list) {
	var reg = new RegExp('([^a-zA-Z]' + param + '|^' + param + ')\\s*=\\s*\\[\\s*(((\\[\\[)|(\\]\\])|([^\\]\\[]))*)\\s*\\]');
	var res = reg.exec(list);
	var returnvar;
	if (res) return res[2].replace('[[', '[').replace(']]', ']');
	else return '';
}

function Left(elem) {
	var x = 0;
	if (elem.calcLeft) return elem.calcLeft;
	var oElem = elem;
	while (elem) {
		if ((elem.currentStyle) && (!isNaN(parseInt(elem.currentStyle.borderLeftWidth))) && (x != 0)) x += parseInt(elem.currentStyle.borderLeftWidth);
		x += elem.offsetLeft;
		elem = elem.offsetParent;
	}
	oElem.calcLeft = x;
	return x;
}

function Top(elem) {
	var x = 0;
	if (elem.calcTop) return elem.calcTop;
	var oElem = elem;
	while (elem) {
		if ((elem.currentStyle) && (!isNaN(parseInt(elem.currentStyle.borderTopWidth))) && (x != 0)) x += parseInt(elem.currentStyle.borderTopWidth);
		x += elem.offsetTop;
		elem = elem.offsetParent;
	}
	oElem.calcTop = x;
	return x;

}

var ah, ab;
function applyStyles() {
	if (ab) oDv.removeChild(dvBdy);
	if (ah) oDv.removeChild(dvHdr);
	dvHdr = document.createElement("div");
	dvBdy = document.createElement("div");
	CBE.boCSSBDY ? dvBdy.className = CBE.boCSSBDY: defBdyStyle();
	CBE.boCSSHDR ? dvHdr.className = CBE.boCSSHDR: defHdrStyle();
	dvHdr.innerHTML = CBE.boHDR;
	dvBdy.innerHTML = CBE.boBDY;
	ah = false;
	ab = false;
	if (CBE.boHDR != '') {
		oDv.appendChild(dvHdr);
		ah = true;
	}
	if (CBE.boBDY != '') {
		oDv.appendChild(dvBdy);
		ab = true;
	}
}

var CSE, iterElem, LSE, CBE, LBE, totalScrollLeft, totalScrollTop, width, height;
var ini = false;

// Customised function for inner window dimension
function SHW() {
	if (document.body && (document.body.clientWidth != 0)) {
		width = document.body.clientWidth;
		height = document.body.clientHeight;
	}
	if (document.documentElement && (document.documentElement.clientWidth != 0) && (document.body.clientWidth + 20 >= document.documentElement.clientWidth)) {
		width = document.documentElement.clientWidth;
		height = document.documentElement.clientHeight;
	}
	return [width, height];
}

var ID = null;
function moveMouse(e) {
	//boxMove=true;
	e ? evt = e: evt = event;

	CSE = evt.target ? evt.target: evt.srcElement;

	if (!CSE.hasbox) {
		// Note we need to scan up DOM here, some elements like TR don't get triggered as srcElement
		iElem = CSE;
		while ((iElem.parentNode) && (!iElem.hasbox)) {
			scanBO(iElem);
			iElem = iElem.parentNode;
		}
	}

	if ((CSE != LSE) && (!isChild(CSE, dvHdr)) && (!isChild(CSE, dvBdy))) {
		if (!CSE.boxItem) {
			iterElem = CSE;
			while ((iterElem.hasbox == 2) && (iterElem.parentNode))
			iterElem = iterElem.parentNode;
			CSE.boxItem = iterElem;
		}
		iterElem = CSE.boxItem;
		if (CSE.boxItem && (CSE.boxItem.hasbox == 1)) {
			LBE = CBE;
			CBE = iterElem;
			if (CBE != LBE) {
				applyStyles();
				if (!CBE.requireclick) if (CBE.fade) {
					if (ID != null) clearTimeout(ID);
					ID = setTimeout("fadeIn(" + CBE.fadespeed + ")", CBE.delay);
				}
				else {
					if (ID != null) clearTimeout(ID);
					COL = 1;
					ID = setTimeout("oDv.style.visibility='visible';ID=null;", CBE.delay);
				}
				if (CBE.IEbugfix) {
					hideSelects();
				}
				fixposx = !isNaN(CBE.fixX) ? Left(CBE) + CBE.fixX: CBE.absX;
				fixposy = !isNaN(CBE.fixY) ? Top(CBE) + CBE.fixY: CBE.absY;
				lockX = 0;
				lockY = 0;
				boxMove = true;
				ox = CBE.offX ? CBE.offX: 10;
				oy = CBE.offY ? CBE.offY: 10;
			}
		}
		else if (!isChild(CSE, dvHdr) && !isChild(CSE, dvBdy) && (boxMove)) {
			// The conditional here fixes flickering between tables cells.
			if ((!isChild(CBE, CSE)) || (CSE.tagName != 'TABLE')) {
				CBE = null;
				if (ID != null) clearTimeout(ID);
				fadeOut();
				showSelects();
			}
		}
		LSE = CSE;
	}
	else if (((isChild(CSE, dvHdr) || isChild(CSE, dvBdy)) && (boxMove))) {
		totalScrollLeft = 0;
		totalScrollTop = 0;

		iterElem = CSE;
		while (iterElem) {
			if (!isNaN(parseInt(iterElem.scrollTop))) totalScrollTop += parseInt(iterElem.scrollTop);
			if (!isNaN(parseInt(iterElem.scrollLeft))) totalScrollLeft += parseInt(iterElem.scrollLeft);
			iterElem = iterElem.parentNode;
		}
		if (CBE != null) {
			boxLeft = Left(CBE) - totalScrollLeft;
			boxRight = parseInt(Left(CBE) + CBE.offsetWidth) - totalScrollLeft;
			boxTop = Top(CBE) - totalScrollTop;
			boxBottom = parseInt(Top(CBE) + CBE.offsetHeight) - totalScrollTop;
			doCheck();
		}
	}

	if (boxMove && CBE) {
		// This added to alleviate bug in IE6 w.r.t DOCTYPE
		bodyScrollTop = document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop: document.body.scrollTop;
		bodyScrollLet = document.documentElement && document.documentElement.scrollLeft ? document.documentElement.scrollLeft: document.body.scrollLeft;
		mouseX = evt.pageX ? evt.pageX - bodyScrollLet: evt.clientX - document.body.clientLeft;
		mouseY = evt.pageY ? evt.pageY - bodyScrollTop: evt.clientY - document.body.clientTop;
		if ((CBE) && (CBE.windowLock)) {
			mouseY < -oy ? lockY = -mouseY - oy: lockY = 0;
			mouseX < -ox ? lockX = -mouseX - ox: lockX = 0;
			mouseY > (SHW()[1] - oDv.offsetHeight - oy) ? lockY = -mouseY + SHW()[1] - oDv.offsetHeight - oy: lockY = lockY;
			mouseX > (SHW()[0] - dvBdy.offsetWidth - ox) ? lockX = -mouseX - ox + SHW()[0] - dvBdy.offsetWidth: lockX = lockX;
		}
		oDv.style.left = ((fixposx) || (fixposx == 0)) ? fixposx: bodyScrollLet + mouseX + ox + lockX + "px";
		oDv.style.top = ((fixposy) || (fixposy == 0)) ? fixposy: bodyScrollTop + mouseY + oy + lockY + "px";

	}
}

function doCheck() {
	if ((mouseX < boxLeft) || (mouseX > boxRight) || (mouseY < boxTop) || (mouseY > boxBottom)) {
		if (!CBE.requireclick) fadeOut();
		if (CBE.IEbugfix) {
			showSelects();
		}
		CBE = null;
	}
}

function pauseBox(e) {
	e ? evt = e: evt = event;
	boxMove = false;
	evt.cancelBubble = true;
}

function showHideBox(e) {
	oDv.style.visibility = (oDv.style.visibility != 'visible') ? 'visible': 'hidden';
}

function hideBox(e) {
	oDv.style.visibility = 'hidden';
}

var COL = 0;
var stopfade = false;
function fadeIn(fs) {
	ID = null;
	COL = 0;
	oDv.style.visibility = 'visible';
	fadeIn2(fs);
}

function fadeIn2(fs) {
	COL = COL + fs;
	COL = (COL > 1) ? 1 : COL;
	oDv.style.filter = 'alpha(opacity=' + parseInt(100 * COL) + ')';
	oDv.style.opacity = COL;
	if (COL < 1) setTimeout("fadeIn2(" + fs + ")", 20);
}

function fadeOut() {
	oDv.style.visibility = 'hidden';

}

function isChild(s, d) {
	while (s) {
		if (s == d) return true;
		s = s.parentNode;
	}
	return false;
}

var cSrc;
function checkMove(e) {
	e ? evt = e: evt = event;
	cSrc = evt.target ? evt.target: evt.srcElement;
	if ((!boxMove) && (!isChild(cSrc, oDv))) {
		fadeOut();
		if (CBE && CBE.IEbugfix) {
			showSelects();
		}
		boxMove = true;
		CBE = null;
	}
}

function showSelects() {
	var elements = document.getElementsByTagName("select");
	for (i = 0; i < elements.length; i++) {
		elements[i].style.visibility = 'visible';
	}
}

function hideSelects() {
	var elements = document.getElementsByTagName("select");
	for (i = 0; i < elements.length; i++) {
		elements[i].style.visibility = 'hidden';
	}
}