// page initialization sequence
		windowOnLoad = function() {
		// pageId identifies document, for page-specific scripts;
			setBgPosition();    // irritating hack
			window.pageId = document.getElementsByTagName('body')[0].id;
			setRollovers();     // set rollover behaviours for images
			if (client.engine == 'msie' && parseInt(client.engRev) == 6) { ieSixPngSupport(); } 
			setSwf();           // set swf movies for site
			setAncWidth();      // top of page anchor section styling script (shrink to fit longest link)
			setLinkEvents();    // set link events by type
			setGlossary();      // hide anchorlinks in glossary for nonexistant sections
			setExitLink();      // sets exit link url based on querystring.
			setDropDowns();     // sets dropdown functionality for the main menu
			setPagintion(1500); // set pages to paginate at 1500 pixels depth of (pagination) content
			setListExpansion(document.getElementById('map'), ['contracted', 'expanded']);
			setTopNavState();   // sets nav state.
		}
		window.onresize = function() { setBgPosition(); }    // irritating hack
		
		

	// finds best method to detect window load event
		if (/KHTML/i.test(navigator.userAgent)) {
			var checkLoad = setInterval(function() { if(/loaded|complete/.test(document.readyState)) { clearInterval(checkLoad); windowOnLoad(); }}, 70);
			document.addEventListener('load', windowOnLoad, false);
		}
		if (typeof window.addEventListener != 'undefined') {
			document.addEventListener('DOMContentLoaded', windowOnLoad, false);
			document.addEventListener('load', windowOnLoad, false);
		} else if (typeof window.attachEvent != 'undefined') {
			document.write('<script id=__ie_onload defer src=https:javascript:false></script>');
			document.getElementById('__ie_onload').onreadystatechange = function(evt) { if (this.readyState == 'complete') windowOnLoad(); };
			window.attachEvent('onbeforeunload', function() {
				__flash_unloadHandler = function() {};
				__flash_savedUnloadHandler = function() {};
			});
		}		
		



	// set state of topNav by page location
		var setTopNavState = function(override) {
		// reset all menu states to passive
			var mainNav = document.getElementById('navigation-main');
			if (mainNav) { //check to see if it exists
				mainNav.normalize();
				for (var i = 0; i < mainNav.childNodes.length; i++) {
					var thisItm = mainNav.childNodes[i];
					if (thisItm.nodeName != 'LI') {
						continue;
					} else {
						thisImg = thisItm.getElementsByTagName('img')[0];
						thisImg.out();
					}
				}
			}
		// restore previously nullifed mouseouts
			setRollovers();
		// get current button index
			if (/.+\/index.html$/.test(document.location.href) && !override) {
				var pBut = 0;
			} else {
				var pBut = override || document.qstr.page || null;
			}
		// set image state, and remove mouseout
			el = document.getElementById('topNav' + (parseInt(pBut) + 1));
			if (el) {
				var thisImg = el.getElementsByTagName('img')[0];
				thisImg.ovr();
				thisImg.onmouseout = null;
			}
		}




	// function sets custom link behaviors by attribute
		var setLinkEvents = function() {
			var links  = document.getElementsByTagName('a');
			for (var i=0;i<links.length;i++) { 
				var l = links[i];
			// if type is defined, assign behaviour by it.
				if (l.getAttribute('linktype')) {
					switch(l.getAttribute('linktype')) {
						case 'poparticle':
							l.onclick = function() {
								popArticle(this.href);
								return false;
							 }
						break;
						case 'popinter':
							l.onclick = function() {
								popInter(this.href);
								return false;
							 }
						break;
						case 'closewin':
							l.onclick = function() {
								self.close();
								return false;
							 }
						break;
						case 'gopage':
							l.onclick = function() {
								var newwindow = window.open(this.href,'','height=600,width=900,location=1,menubar=0,resizable,scrollbars=1');
								self.close();
								newwindow.focus();
								return false;
							 }
						break;
						case 'printwin':
							l.onclick = function() {
								window.print();
								return false;
							 }
						break;
						case 'showoverlayimage':
							l.onclick = function() {
							// move href to custom attribute, and remove
								if (!this.getAttribute('imgUrl')) {
									this.setAttribute('imgUrl', this.href);
									this.removeAttribute('href');
								}
							// show overlay
								showOverlayImage(this.getAttribute('imgUrl'), this.getAttribute('mapto'));
								return false;
							 }
						break;
					}
				}
			}
		}




	// function gets page num from path
		var getPageName = function() {
			var sPath = window.location.pathname; 
			return sPath.substring(sPath.lastIndexOf('/') + 1);
		}




	// top of page anchor section styling script (shrink to fit longest link)
		var setAncWidth = function() {
			var allLists = document.getElementsByTagName('ul');
		// for each list
			for (var i = 0; i < allLists.length; i++) { //<-- for i in allLists
				var thisList = allLists[i];
			// exclude all but lists .anchors
				if (thisList.className == 'anchors' || thisList.className == 'split-links' || thisList.className == 'peach-links') {
				// look at all linkes within each list
					var listLinks = thisList.getElementsByTagName('a');
					var longestLink = 0;
					for (var ii = 0; ii < listLinks.length; ii++) { //<-- for i in listLinks\
						var thisLink = listLinks[ii];
					// record width of longest link
						longestLink = Math.max(longestLink, thisLink.offsetWidth);
					}
				// set width of list to longest link's width
					thisList.style.width = longestLink/10 + 'em';
				}
			}
		}




	// hide anchorlinks in glossary for nonexistant sections
		var setGlossary = function() {
			var glossAnchors = document.getElementById('glossary-anchors')
			if (glossAnchors) {
			// determines if an anchor link leads anywhere on the page
				var hasSection   = function(anchor) {
				// get all anchors and the name attbr to search for
					var allAnchors = document.getElementsByTagName('a');
					var anchor     = anchor.href.split('#')[1];
				// if match found, return true, else return false
					for (var ii=0; ii < allAnchors.length; ii++) { if (allAnchors[ii].name == anchor) { return true } }
					return false;
				}
			// go through all glossary anchors and hide the dead ones.
				glossAnchors = glossAnchors.getElementsByTagName('a');
				for (var i=0;i<glossAnchors.length;i++) {
					var thisAnchor = glossAnchors[i];
				// hide or show anchor by availability of attached content
					thisAnchor.parentNode.style.display = (hasSection(thisAnchor)) ? 'inline' : 'none';
				}
			// return to anchor on page to assure page-length adjustments jive with anchors
				if (/#/.test(document.location.href)) { document.location.href = '#' + document.location.href.split('#')[1] }
//				document.location.href = document.location.href;
			} 
		}




	// set external link href (used in both popup, and interstitial behaviour)
		function setExitLink(url) {
			var exitLink   = document.getElementById('extLinkExitLink');
			var exitUrl    =  url || unescape(document.qstr.goTo) || false;
			if (exitLink) {
				if (exitUrl) {
					exitLink.href = exitUrl;
					exitLink.style.display = 'block';
				} else {
					throw('setExitLink was not sent an argument and the querystring variable \'goTo\' is undefined: where do you want to go?');
				}
			} 
		}




	// set swf movies for site
		var setSwf = function() {
		// if flash support insuffient, hide links to flash content
			if (swf.rev < 7) {
				var allLinks = document.getElementsByTagName('*');
				for (var i=0; i < allLinks.length; i++) {
					var thisLink = allLinks[i];
					if (thisLink.getAttribute('swfReq')) { thisLink.style.display = 'none'; }
				}
			}
		// set options for flash movies
			var flashOpts  = {
				width: 980,
				height: 571,
				bgcolor: '#FFFFFF',
				wmode: 'transparent',
				revReq: 7,
				altCont:'./1_1.html'
			}
		// set movie url if exists
			var swfUrl = false;
			switch(document.body.id) {
				case 'home':
					swfUrl = './allergan_site.swf';
				break;
				case 'experts':
					swfUrl = './allergan_site.swf';
				break;
			}
		// support for deeplinking via querystring
			if (typeof(document.qstr.page) != 'undefined') { swfUrl += '?page=' + document.qstr.page; }
		// embedding script for ask the experts
			if (swfUrl) {
				var movieParen    = document.getElementById('body');
				window.exptsMovie = swf.movie(swfUrl, flashOpts);
				if (exptsMovie) {
					exptsMovie = movieParen.appendChild(exptsMovie);
					movieParen.style.width  = '980px';
					movieParen.style.height = '571px';
				}
			}
		}




	// set list expansion
		var setListExpansion = function(listRoot, toggle) {
			if (listRoot && toggle && toggle.length == 2) { 
				var allItems = listRoot.getElementsByTagName('li');
				for (var i = 0; i< allItems.length; i++) {
					var thisItem = allItems[i];
					if ((thisItem.className == (toggle[0] || toggle[1])) && thisItem.getElementsByTagName('ul').length != 0) {
						var clickElement = thisItem.getElementsByTagName('*')[0];
						clickElement.onclick = function() {this.parentNode.className = ( this.parentNode.className == toggle[0]) ? toggle[1] : toggle[0]; }
					}
				}
			}
		}




	// set dropdown menus ... got help anyone that ever has to maintain this ... 
		var setDropDowns = function() {
			var navList  = document.getElementById('navigation-main');
			if (navList) {
				navList.normalize();
			// get some element
				var allItems = navList.getElementsByTagName('li');
				var allLinks = navList.getElementsByTagName('a');
			// create global function for timeout passing
				window.hideLastOut = function() {
					if (typeof(window.navOutObj) != 'undefined' && window.navOutObj) {
						window.navOutObj.className = 'closed';
						if (window.navOutObj.getAttribute('istop')) { try { window.navOutObj.firstChild.firstChild.onmouseout(); } catch(e) { } } //<!-- ugly, I know ... no time ... 
					}
				}
			// loop through items and handle appearance
				for (var i = 0; i< allItems.length; i++) {
					var thisItem = allItems[i];
				// remove mouseover event from top-level menu graphics
				// as that behaviour will be set by in the li element
					if (thisItem.id.indexOf('topNav') != -1) { thisItem.setAttribute('istop', 'true');}
					if (thisItem.getAttribute('istop')) {
						thisItem.onmouseover = function() {
							window.navOutTimer = clearTimeout(window.navOutTimer);
							window.navOutObj = false;
						// hide previous menu
							if (typeof(window.navOnObj) != 'undefined') { 
								if (this.getAttribute('istop')) {
									window.navOnObj.className   = 'closed';
									try { window.navOnObj.firstChild.firstChild.onmouseout(); } catch(e) { } //<!-- ugly, I know ... no time ... 
								}
							}
						// show this menu menu
							if (this.getAttribute('istop')) {
								this.className   = 'opened';
								this.firstChild.firstChild.onmouseover();
							}
						// set previous menu ref for future
							window.navOnObj = this;
						}
						thisItem.onmouseout = function() {
							window.navOutObj = this;
							window.navOutTimer = setTimeout(window.hideLastOut, ((client.engine == 'msie') ? 500 : 5)); // <!-- ie needs extra help on the timer of course ...
						}
					} else {
						thisItem.onmouseover = function() { this.className = 'hover'; }
						thisItem.onmouseout  = function() { this.className = '';      }
						if (thisItem.firstChild.nodeName == 'A' && thisItem.firstChild.href == document.location.href) {
							thisItem.onmouseover();
							thisItem.onmouseout = null;
							var menuParent      = thisItem.parentNode.parentNode;
								menuParent.normalize()
							var parentImg       = menuParent.firstChild.firstChild;
								parentImg.out   = parentImg.ovr;
								parentImg.ovr();
						} else {
							thisItem.onmouseout();
						}
					}
				}
			// loop through links and set click behaviour for flash, if support available
				for (var i = 0; i< allLinks.length; i++) {
					var thisLink = allLinks[i];
					var flashIndex = thisLink.getAttribute('flashIndex');
					if (swf.rev >= 7 && flashIndex) {
						thisLink.onclick = function() {
							if (typeof(exptsMovie) != 'undefined' && exptsMovie) {
							// js-based linking when flash is present
								exptsMovie.setVar('page', this.getAttribute('flashIndex'));
								setTopNavState(this.getAttribute('flashIndex'));
							} else {
							// page-based linking when flash is not present
								document.location.href = './index.html?page=' + this.getAttribute('flashIndex');
							}
						}
						thisLink.removeAttribute('href')
					}
				}
			}
		}




	// set pagintation for long pages
		var setPagintion = function(maxDepth, debug) {
		// will store blocks of html in sections of pages
			var pageBlocks  = [[]];
			var currentPage = 0;
		// returns an array of elements designated for use as controls blocks
			var returnControls = function() {
				var controls = [];
				var allElements = document.getElementsByTagName('*');
				for (var i = 0; i < allElements.length; i++) {
				// find element and skip if not a pagination control
					var thisControl = allElements[i]
					if (thisControl.className != 'pagination') { continue; }
				// add control to array
					controls.push(thisControl);
				}
				return controls;
			}
		// finish styling the control blocks ..
			var styleControls = function() {
				var controls = returnControls();
				for (i in controls) {
				// get object refs
					var control  = controls[i];
					var prevLink = control.getElementsByTagName('a')[0];
					var nextLink = control.getElementsByTagName('a')[1];
					var pageList = control.getElementsByTagName('ul')[0];
					var pageone  = control.getElementsByTagName('li')[0];
					var pageDiv  = pageList.parentNode;
				// set some styling properties
					control.style.width       = ((prevLink.offsetWidth + nextLink.offsetWidth + pageList.offsetWidth)/10) + 'em';
					pageDiv.style.marginLeft  = (prevLink.offsetWidth/10) + 'em';
					pageDiv.style.marginRight = (nextLink.offsetWidth/10) + 'em';
					pageone.style.borderLeft  = 'none';
					control.style.visibility  = 'visible';
				// css bugfix ... only workaround for firefox bug ... irritating
					control.style.position    = 'absolute';
					control.style.right       = '0';
					control.style.top         = '0';
				}
			}
		// create all controls ... pretty self explanatory
			var createControls = function() {
				var controls = returnControls();
				for (i in controls) {
					var control   = controls[i];
					var prevLink  = control.appendChild(document.createElement('a'));
						prevLink.className = 'prev';
						prevLink.innerHTML = 'Previous page';
						prevLink.onclick = function() { goToPage('prev'); }
					var nextLink  = control.appendChild(document.createElement('a'));
						nextLink.className = 'next';
						nextLink.innerHTML = 'Next page';
						nextLink.onclick = function() { goToPage('next'); }
					var pagesDiv  = control.appendChild(document.createElement('div'));
						pagesDiv.className = 'pages';
					var pagesList = pagesDiv.appendChild(document.createElement('ul'));
					for (ii in pageBlocks) {
						var thisPage = pagesList.appendChild(document.createElement('li'));
						var thisLink = thisPage.appendChild(document.createElement('a'));
							thisLink.innerHTML = (parseInt(ii) + 1);
							thisLink.onclick = function() { goToPage(parseInt(this.innerHTML)-1); }
					}
				}
			}
		// function attached to anchor links to ensure content is visible.
		// need to add anchor link support ...
			var goToPage = function(dest) {
			// defaults
				var page = dest || 0;
			// keyword based navigation
				if (page == 'prev') { page = Math.max(currentPage-1, 0); }
				if (page == 'next') { page = Math.min(currentPage+1, pageBlocks.length-1); }
			// show the target page
				for (i in pageBlocks) {
					var thisPage = pageBlocks[i];
					for (ii in thisPage) {
						thisPage[ii].style.display = (i == page) ? 'block' : 'none';
					}
				}
			// classify pagination controls
				var controls = returnControls();
				for (i in controls) {
				// get object refs
					var control = controls[i];
					var pageLinks = control.getElementsByTagName('li');
				// classify numbered controls
					for (var ii = 0; ii < pageLinks.length; ii++) {
						thisLink = pageLinks[ii];
						thisLink.className = (parseInt(thisLink.firstChild.innerHTML)-1 == page) ? 'current' : '';
					}
				// classify named controls
					control.childNodes[0].className = (page == 0) ? 'prevOff' : 'prev';
					control.childNodes[1].className = (page+1 == pageBlocks.length) ? 'nextOff' : 'next';
				}
			// back to the top.
				window.scrollTo(0,0);
			// record current page
				currentPage = page;
			}
		// break up content blocks and display requested page
		// uses href to deeplink anchor linkage. Pretty smart!
			var setContBlocks = function(maxDepth, debug) {
				var thisPage  = 0;
				var thisDepth = 0;
				var allElements = document.getElementsByTagName('*');
				for (var i = 0; i < allElements.length; i++) {
				// find element and skip if not a paginated block
					var block = allElements[i];
					if (!block.getAttribute('paginate') || block.getAttribute('paginate') != 'true') { continue; }
					var blockDepth = block.offsetHeight;
					var thisBlock  = pageBlocks[thisPage];
				// pagination decision logic
					if (!thisBlock.length || (thisDepth + blockDepth <= maxDepth)) {   // <-- if empty or short enough to fit use current array node
						thisDepth += blockDepth;
					} else {                                                           // <-- set/create next array node when current block won't fit
						thisDepth = blockDepth; thisPage++;
						pageBlocks.push([]);
					}
				// push this block onto selected subarray
					pageBlocks[thisPage].push(block);                                  // <-- push block onto selected array node
				}
			// only display pagination if doc contains > 1 page
				if (pageBlocks.length > 1) {
					createControls(goToPage);
					styleControls();
					goToPage();
				}
			}
		// initialize
			setContBlocks(maxDepth, debug);
		}




		var setRollovers = function() {
			var bareUrl = function(string) {
				string = string.substring(string.lastIndexOf('#'));
				string = string.substring(string.lastIndexOf('?'));
				return string;
			}
			var allImages = document.getElementsByTagName('img');
			for (var i = 0; i < allImages.length; i++) {
				var thisImage = allImages[i];
				var thisPath = thisImage.src.substring(0, (thisImage.src.lastIndexOf('/')+1));
				var thisFile = thisImage.src.substring(thisImage.src.lastIndexOf('/')+1);
				var thisParent = thisImage.parentNode;
				if ((/_off$/.test(thisFile.split('.')[0])) || (/_on$/.test(thisFile.split('.')[0]))) {
					thisImage.setAttribute('imagpath', thisPath);
					thisImage.setAttribute('ovrstate', thisFile.split('_off.').join('_on.'));
					thisImage.setAttribute('offstate', thisFile);
				// create state-setting methods.
					thisImage.ovr = function() {
						this.src = this.getAttribute('imagpath') + this.getAttribute('ovrstate');
						if (client.engine == 'msie' && parseInt(client.engRev) == 6) { makePngIe6Friendly(this); }
					}
					thisImage.out = function() {
						this.src = this.getAttribute('imagpath') + this.getAttribute('offstate');
						if (client.engine == 'msie' && parseInt(client.engRev) == 6) { makePngIe6Friendly(this); }
					}
				// surface state-setting methods.
					thisImage.onmouseover = function() { this.ovr(); }
					thisImage.onmouseout = function()  { this.out(); }
				}
			}
		}




	// support for graphic interstitial overlays
		var showOverlayImage = function(imgUrl, mapto) {
			var thisImg = document.getElementById('site-wrapper').appendChild(document.createElement('img'));
				thisImg.id = 'overlayImageLayer';
				thisImg.style.visibility = 'hidden';


				thisImg.setAttribute('isMap', 'true');
				thisImg.setAttribute('useMap', '#' + mapto);
				thisImg.setAttribute('border', '0');

				thisImg.isMap = true;
				thisImg.useMap = '#' + mapto;

			// don't try and style image until it has has loaded ... 
				thisImg.onload = function() {
					this.style.left       = (this.parentNode.offsetWidth - this.offsetWidth)/2 + 'px';
					this.style.top        = parseInt(Math.max((client.viewport()[1]-this.offsetHeight), 1)/2) + parseInt(client.scrollCoords()[1]) + 'px';
					this.style.position   = 'absolute';
					this.style.visibility = 'visible';
				}
				window.hideoverlay = function() {
					var destroyNode = document.getElementById('overlayImageLayer');
						destroyNode = document.getElementById('site-wrapper').removeChild(destroyNode);
						destroyNode = null;
				}
			// change src and wait for the onload event to fire.
				thisImg.src = imgUrl;
		}




	// handles daughter windows for articles
		function popArticle(url) {
			var height = 500;
			var width  = 996;
			newwindow  =window.open(url,'','height=' + height + ',width=' + width + ',location=1,menubar=0,resizable,scrollbars=1');	
			if (window.focus) {newwindow.focus()}	
			return false;
		}




	// handles daughter windows for interstitials
		function popInter(url) {
			var height = 275;
			var width  = 350;
			newwindow  = window.open(url,'','height=' + height + ',width=' + width + ',location=0,menubar=0,resizable,scrollbars=1');
			if (window.focus) {newwindow.focus()}	
			return false;
		}




	// handles printing & tracking
		function printPage(Pagename,channel,eVar2) {
			s               = s_gi(s_account);
			s.Pagename      = Pagename;
			s.channel       = channel;
			s.eVar2         = eVar2;
			s.linkTrackVars = "eVar2";
			//s.tl(object,'o','PrintClick');
			window.print();
		}




	// hack to make sure positioning of background and wrapper match on both even and odd width viewports ... retarded.
		var setBgPosition = function() {
		// get width and elements (limit to even numbers only)
			var viewWidth = Math.floor((client.viewport()[0]/2))*2;
			var parent    = document.getElementById('site-wrapper');
			var body      = document.getElementsByTagName('body')[0];
			try {
			// calculate positioning
				var posLeft   = parseInt(viewWidth-parent.offsetWidth)/2;
				var posLeftBg = parseInt(posLeft - 789);
			// set positioning
				parent.style.marginLeft       = posLeft + 'px';
				body.style.backgroundPosition = posLeftBg + 'px 0px';
				body.style.backgroundrepeat   = 'no-repeat';
			} catch (e) {}

		}