var isDOM = document.getElementById?1:0;
var isIE = document.all?1:0;
var isNS4 = (navigator.appName=='Netscape' && !isDOM)?1:0;
var isIE4 = (isIE && !isDOM)?1:0;
var isDyn = (isDOM||isIE||isNS4);

function getRef(id, par)
{	par = !par ? document : (par.navigator?par.document:par);
	return (isIE ? par.all[id] :
	(isDOM ? (par.getElementById?par:par.ownerDocument).getElementById(id):par.layers[id]));}
function getSty(id, par)
{	return (isNS4 ? getRef(id, par) : getRef(id, par).style)}
if (!window.LayerObj) var LayerObj = new Function('id', 'par','this.ref=getRef(id, par); this.sty=getSty(id, par); return this');
function getLyr(id, par)
{	return new LayerObj(id, par)}
function LyrFn(fn, fc)
{	LayerObj.prototype[fn] = new Function('var a=arguments,p=a[0]; with (this) { '+fc+' }');}
LyrFn('x','if (!isNaN(p)) sty.left=p; else return parseInt(sty.left)');
LyrFn('y','if (!isNaN(p)) sty.top=p; else return parseInt(sty.top)');
LyrFn('vis','sty.visibility=p');
LyrFn('bgColor','if (isNS4) sty.bgColor=(p?p:null); else sty.background=p?p:"transparent"');
LyrFn('bgImage','if (isNS4) sty.background.src=(p?p:null); else sty.background=(p?"url("+p+")":"") ');
LyrFn('clip','if (isNS4) with(sty.clip) { left=a[0]; top=a[1]; right=a[2]; bottom=a[3] } else sty.clip="rect("+a[1]+"px "+a[2]+"px "+a[3]+"px "+a[0]+"px)" ');
LyrFn('write','if (isNS4) with (ref.document) {write(p);close()} else ref.innerHTML=p');
LyrFn('alpha','var f=ref.filters; if (f) {if (sty.filter.indexOf("alpha")==-1) sty.filter+="alpha()";if (f.length&&f.alpha) f.alpha.opacity=p } else if (isDOM) sty.MozOpacity=(p/100)');
function setLyr(lVis, docW, par)
{	if (!setLyr.seq) setLyr.seq=0;
	if (!docW) docW=0;
	var obj = (!par ? (isNS4 ? window : document.body) :
	(!isNS4 && par.navigator ? par.document.body : par));
	var newID='_js_layer_'+setLyr.seq++;
	if (isIE&&!window.opera) obj.insertAdjacentHTML('beforeEnd', '<div id="'+newID+'" style="position:absolute"></div>');
	else if (isDOM)
	{	var newL=document.createElement('div');
		obj.appendChild(newL);
		newL.id=newID; newL.style.position='absolute';}
	else if (isNS4)
	{	var newL=new Layer(docW, obj);
		newID=newL.id;}
	var lObj=getLyr(newID, par);
	with (lObj.sty) { visibility=lVis; left=0; top=0; width=docW }
	return lObj;}
if (!window.page) var page = { win: window, minW: 0, minH: 0, MS: isIE&&!window.opera}
page.winW=function()
{	with (this) return Math.max(minW, MS?win.document.body.clientWidth:win.innerWidth)}
page.winH=function()
{	with (this) return Math.max(minH, MS?win.document.body.clientHeight:win.innerHeight)}
page.scrollX=function()
{	with (this) return MS?win.document.body.scrollLeft:win.pageXOffset}
page.scrollY=function()
{	with (this) return MS?win.document.body.scrollTop:win.pageYOffset}
function popOver(mN, iN)
{	with (this)
	{	clearTimeout(hideTimer);
		overM = mN;
		overI = iN;
		var thisI = menu[mN][iN];
		if (iN && this.onmouseover) this.onmouseover();
		litOld = litNow;
		litNow = new Array();
		var litM = mN, litI = iN;
		while(1)
		{	litNow[litM] = litI;
			if (litM == 'root') break;
			litI = menu[litM][0].parentItem;
			litM = menu[litM][0].parentMenu;}
			var same = true;
			for (var z in menu) if (litNow[z] != litOld[z]) same = false;
			if (same) return;
			for (thisM in menu) with (menu[thisM][0])
			{	if (!lyr) continue;
				litI = litNow[thisM];
				oldI = litOld[thisM];
				if (litI && (litI != oldI)) changeCol(thisM, litI, true);
				if (oldI && (oldI != litI)) changeCol(thisM, oldI, false);
				if (litI && !visNow && (thisM != 'root'))
				{	showMenu(thisM);
					visNow = true;}
				if (isNaN(litI) && visNow)
				{	hideMenu(thisM);
					visNow = false;}}
			clearTimeout(showTimer);
			nextMenu = '';
			if (thisI.type == 'sm:')
			{	var targ = thisI.href, lyrM = menu[mN][0].lyr;
				with (menu[targ][0])
				{	if (!lyr || !lyr.ref) return;
					lyr.x(eval(offX) + (typeof(offX)=='number' ? lyrM.x() + thisI.lyr.x() : 0));
					lyr.y(eval(offY) + (typeof(offY)=='number' ? lyrM.y() + thisI.lyr.y() : 0));
					showStr = myName + '.showMenu("' + targ + '"); ' +
					myName + '.menu.' + targ + '[0].visNow = true';
					nextMenu = targ;
					if (showDelay) showTimer = setTimeout(showStr, showDelay);
					else eval(showStr);
				}
			}
		}
}
function popChangeCol(mN, iN, isOver)
{	with (this.menu[mN][iN])
	{	var col = isOver ? overCol : outCol;
		if (col.indexOf('.') == -1) lyr.bgColor(col);
		else lyr.bgImage(col);
		var doFX = ((overClass != outClass) || (outBorder != overBorder));
		if (doFX && isNS4) lyr.write(this.getHTML(mN, iN, isOver));
		else if (doFX) with (lyr)
		{	ref.className = (isOver ? overBorder : outBorder);
			var chl = (isDOM ? ref.childNodes : ref.children)
			if (chl) for (var i = 0; i < chl.length; i++)
			chl[i].className = (isOver ? overClass : outClass);
		}
		if (typeof(outAlpha)=='number') lyr.alpha(isOver ? overAlpha : outAlpha);
	}
}
function popOut(mN, iN)
{	with (this)
	{	if ((mN != overM) || (iN != overI)) return;
		if (this.onmouseout) this.onmouseout();
		var thisI = menu[mN][iN];
		if (thisI.href != nextMenu) clearTimeout(showTimer);
		if (hideDelay)
		{	var delay = ((mN == 'root') && (thisI.type != 'sm:')) ? 50 : hideDelay;
			hideTimer = setTimeout(myName + '.over("root", 0)', delay);
		}
		overM = 'root';
		overI = 0;
	}
}
function popClick(evt)
{	with (this)
	{	if (overI)
		{	if (this.onclick) this.onclick();
			var thisI = menu[overM][overI];
			with (thisI) switch (type)
			{	case 'sm:': return;
				case 'js:': { eval(href); break }
				case '': type = 'window';
				default: if (href) eval(type + '.location.href = "' + href + '"');
			}
		}
		over('root', 0);
	}
}
function popClearLyr(wN)
{	with (this)
	{	for (mN in menu) with (menu[mN][0]) if (par == wN) lyr = null;}
}
function addProps(obj, data, names, addNull)
{	for (var i = 0; i < names.length; i++) if(i < data.length || addNull) obj[names[i]] = data[i];}

function ItemStyle()
{	var names = ['len', 'spacing', 'popInd', 'popPos', 'pad', 'outCol', 'overCol', 'outClass', 'overClass', 'outBorder', 'overBorder', 'outAlpha', 'overAlpha'];
	addProps(this, arguments, names, true);
}
function popStartMenu(mName)
{	with (this)
	{	if (!menu[mName]) { menu[mName] = new Array(); menu[mName][0] = new Object(); }
		actMenu = mName;
		menu[mName].length = 1;
		nextItem = 1;
		var aM = menu[mName][0];
		var names = ['isVert', 'isVert', 'offX','offY', 'width', 'itemSty', 'par', 'parentMenu', 'parentItem', 'visNow', 'menuW', 'menuH'];
		addProps(aM, arguments, names, true);
		if (!aM.lyr) aM.lyr = null;
	}
}
function popAddItem()
{	with (this)
	{	var aI = menu[actMenu][nextItem++] = new Object();
		var names = ['text', 'href', 'type', 'itemSty', 'len', 'spacing', 'popInd', 'popPos', 'pad', 'outCol', 'overCol', 'outClass', 'overClass', 'outBorder', 'overBorder', 'outAlpha', 'overAlpha', 'iW', 'iH', 'lyr'];
		addProps(aI, arguments, names, true);
		var iSty = (arguments[3] ? arguments[3] : menu[actMenu][0].itemSty);
		for (prop in iSty) if (aI[prop] == window.UnDeFiNeD) aI[prop] = iSty[prop];
		if (aI.outBorder)
		{	if (isNS4) aI.pad++;}
	}
}
function popGetHTML(mN, iN, isOver)
{	with (this)
	{	var itemStr = '';
		with (menu[mN][iN])
		{	var textClass = (isOver ? overClass : outClass);
			if ((type == 'sm:') && popInd)
			{	if (isNS4) itemStr += '<layer class="' + textClass + '" left="'+ ((popPos+iW) % iW)+'" top="' + pad + '">' + popInd + '</layer>';
				else itemStr += '<div class="' + textClass + '" style="position: absolute; left: '+((popPos+iW) % iW) + '; top: ' + pad + '">' + popInd + '</div>';
			}
			if (isNS4) itemStr += (outBorder ? '<span class="' + (isOver ? overBorder : outBorder)+'"><spacer type="block" width="' + (iW - 8) + '" height="' + (iH - 8) + '"></span>' : '')+'<layer left="' + pad + '" top="' + pad + '" width="' + (iW - (2 * pad)) + '" height="'+(iH - (2 * pad)) + '"><a class="' + textClass + '" href="#" '+'onClick="return false" onMouseOver="status=\'\'; ' + myName + '.over(\'' + mN + '\','+iN + '); return true">' + text + '</a></layer>';
			else itemStr += '<div class="' + textClass + '" style="position: absolute; left: ' + pad+'; top: ' + pad + '; width: ' + (iW - (2 * pad)) + '; height: ' + (iH - (2 * pad))+'">' + text + '</div>';
		}
		return itemStr;
	}
}
function popUpdate(docWrite, upMN)
{	with (this)
	{	if (!isDyn) return;
		for (mN in menu) with (menu[mN][0])
		{	if (upMN && (upMN != mN)) continue;
			var str = '', iX = 0, iY = 0;
			for (var iN = 1; iN < menu[mN].length; iN++) with (menu[mN][iN])
			{	var itemID = myName + '_' + mN + '_' + iN;
				var targM = menu[href];
				if (targM && (type == 'sm:'))
				{	targM[0].parentMenu = mN;
					targM[0].parentItem = iN;}
				var shrink = (outBorder && ((isDOM && !isIE) || window.opera) ? 2 : 0)
				iW = (isVert ? width : len) - shrink;
				iH = (isVert ? len : width) - shrink;
				var isImg = (outCol.indexOf('.') != -1) ? true : false;
				if (isDOM || isIE4)
				{	str += '<div id="' + itemID + '" ' + (outBorder ? 'class="' + outBorder + '" ' : '')+'style="position: absolute; left: ' + iX + '; top: ' + iY + '; width: ' + iW + '; height: '+iH + '; background: ' + (isImg ? 'url('+outCol+')' : outCol)+((typeof(outAlpha)=='number') ? '; filter: alpha(opacity='+ outAlpha + '); -moz-opacity: '+(outAlpha/100) : '')+'; cursor: ' + ((type!='sm:' && href) ? (isIE ? 'hand' : 'pointer') : 'default') + '" ';}
				else if (isNS4)
				{	str += '<layer id="' + itemID + '" left="' + iX + '" top="' + iY + '" width="'+iW + '" height="' + iH + '" ' + (outCol ? (isImg ? 'background="' : 'bgcolor="')+outCol + '" ' : '');}
					str += 'onMouseOver="' + myName + '.over(\'' + mN + '\',' + iN + ')" '+'onMouseOut="' + myName + '.out(\'' + mN + '\',' + iN + ')">'+getHTML(mN, iN, false) + (isNS4 ? '</layer>' : '</div>');
					var spc = (outBorder ? 1 : 0)
					if (isVert) iY += len + spacing - spc;
					else iX += len + spacing - spc;
				}
				menuW = isVert ? width : iX;
				menuH = isVert ? iY : width;
				var eP = eval(par);
				setTimeout(myName + '.setupRef("' + mN + '")', 50);
				if (docWrite)
				{	var targFr = (eP && eP.navigator ? eP : window);
					targFr.document.write('<div id="' + myName + '_' + mN + '_Div" style="position: absolute; '+'visibility: hidden; width: ' + menuW + '; height: ' + menuH + '; z-index: 1000">'+str + '</div>');}
				else
				{	if (!lyr) lyr = setLyr('hidden', menuW, eP);
					else if (isIE4) setTimeout(myName + '.menu.' + mN + '[0].lyr.sty.width=' + (menuW+2), 50);
					with (lyr) { sty.zIndex = 1000; write(str)}
			}
		}
	}
}
function popSetupRef(mN)
{	with (this) with (menu[mN][0])
	{	if (!lyr || !lyr.ref) lyr = getLyr(myName + '_' + mN + '_Div', eval(par));
		for (var i = 1; i < menu[mN].length; i++)
		menu[mN][i].lyr = getLyr(myName + '_' + mN + '_' + i, lyr.ref);
		if (mN == 'root')
		{	position();
			lyr.vis('visible');}
	}
}
function popPosition(wN)
{	with (this)
	{	for (mN in menu) if (!wN || menu[mN][0].par == wN) with (menu[mN][0])
		{	if (!lyr || !lyr.ref) continue;
			if (typeof(offX)!='number' || mN=='root') lyr.x(eval(offX));
			if (typeof(offY)!='number' || mN=='root') lyr.y(eval(offY));}
	}
}
function PopupMenu(myName)
{	this.myName = myName;
	this.showTimer = 0;
	this.hideTimer = 0;
	this.showDelay = 0;
	this.hideDelay = 500;
	this.showMenu = '';
	this.menu =  new Array();
	this.litNow = new Array();
	this.litOld = new Array();
	this.overM = 'root';
	this.overI = 0;
	this.actMenu = '';
	this.nextItem = 1;
	this.over = popOver;
	this.changeCol = popChangeCol;
	this.out = popOut;
	this.click = popClick;
	this.clearLyr = popClearLyr;
	this.startMenu = popStartMenu;
	this.addItem = popAddItem;
	this.getHTML = popGetHTML;
	this.update = popUpdate;
	this.setupRef = popSetupRef;
	this.position = popPosition;
 	this.showMenu = function(mName) { this.menu[mName][0].lyr.vis('visible') }
	this.hideMenu = function(mName) { this.menu[mName][0].lyr.vis('hidden') }
}
var hBar = new ItemStyle(25,1,'',0, 3, '#EFFAF6', '#36C992', 'itemRoot', 'itemRootHover', 'itemBorderL','itemBorder');
var dBlue = new ItemStyle(25,0,'',0, 3, '#BEEFDC', '#36C992', 'itemText', 'itemHover', 'itemBorder','itemBorder');

var pMenu= new PopupMenu('pMenu');
with (pMenu)
{	startMenu('root', true, 10, 160, 120, hBar);
	addItem('home', 'default.asp', '');
	addItem('information', 'mProduct', 'sm:');	
	addItem('research', 'mResearch', 'sm:');
	addItem('in the news', 'mNews', 'sm:');
	addItem('press room','document.frmPage.page.value="pressroom";document.frmPage.submit()', 'js:');
	addItem('testimonials', 'document.frmPage.page.value="testimonials";document.frmPage.submit()', 'js:');
	addItem('faq', 'document.frmPage.page.value="faq";document.frmPage.submit()', 'js:');
	addItem('purchase', 'document.frmPage.page.value="buy";document.frmPage.submit()', 'js:');
	addItem('contact us', 'document.frmPage.page.value="contact";document.frmPage.submit()', 'js:');
	addItem('login', 'document.frmPage.page.value="login";document.frmPage.submit()', 'js:');

	startMenu('mProduct', true, 119, 0, 180, dBlue);
	addItem('what is morning sickness?', 'document.frmPage.page.value="msickness";document.frmPage.submit()', 'js:');
	addItem('what is MorningWell?', 'document.frmPage.page.value="what";document.frmPage.submit()', 'js:');
	addItem('how does it work?', 'document.frmPage.page.value="how";document.frmPage.submit()', 'js:');
	addItem('how do I use it?', 'document.frmPage.page.value="use";document.frmPage.submit()', 'js:');

	startMenu('mResearch', true, 119, 0, 160, dBlue);
	addItem('NHS(UK) statistics', 'document.frmPage.page.value="NHS";document.frmPage.submit()', 'js:');
	addItem('published report', 'document.frmPage.page.value="published";document.frmPage.submit()', 'js:');

	startMenu('mNews', true, 119, 0, 140, dBlue);
	addItem('television', 'document.frmPage.page.value="TV";document.frmPage.submit()', 'js:');
	addItem('magazines', 'document.frmPage.page.value="magazine";document.frmPage.submit()', 'js:');
	addItem('product reviews', 'document.frmPage.page.value="pharmReview";document.frmPage.submit()', 'js:');

	startMenu('mAdmin', true, 119, 0, 180, dBlue);
	addItem('User Admin', 'admUser.asp', '');
	addItem('Online Orders', 'admOnlineOrders.asp', '');
	addItem('Product Price', 'admPriceTable.asp', '');
	addItem('Logout', 'document.frmPage.page.value="logout";document.frmPage.submit()', 'js:');
}
if (!isNS4)
{	pMenu.update(true);}
else
{	var popOldOL = window.onload;
	window.onload = function()
	{	if (popOldOL) popOldOL();
		pMenu.update();}}
window.onresize = function()
{	ns4BugCheck();
	pMenu.position();}
window.onscroll = function()
{	pMenu.position();}
if (isNS4) document.captureEvents(Event.CLICK);
document.onclick = function(evt)
{	pMenu.click();
	if (isNS4) return document.routeEvent(evt);}
var nsWinW = window.innerWidth, nsWinH = window.innerHeight;
function ns4BugCheck()
{	if (isNS4 && (nsWinW!=innerWidth || nsWinH!=innerHeight)) location.reload()}
if (!isIE || window.opera)
{	var nsPX=pageXOffset, nsPY=pageYOffset;
	setInterval('if (nsPX!=pageXOffset || nsPY!=pageYOffset) '+'{ nsPX=pageXOffset; nsPY=pageYOffset; window.onscroll() }', 50);}
