var site_root = 'http://www.genome.gov/genomiccareers/';


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var w3c = (document.getElementById) ? true : false;
var ie = (document.all && w3c) ? true : false;
var ie7 = (document.all && document.getElementById && window.XMLHttpRequest) ? true : false;
var ie6 = (ie && !ie7) ? true : false;
var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false;

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*/
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// Styles applied by JavaScript before the page loads
swfobject.createCSS('#resourcesListing', 'visibility: hidden;');
swfobject.createCSS('#careerListing', 'visibility: hidden;');	
// End styles applied by JavaScript before the page loads


// Flash content control.
var pages_with_flash = new Array();
//pages_with_flash[0] = new Array('sitewide','mainpage.swf',307,630,'genomicContent');
pages_with_flash[0] = new Array('video_view.cfm','video_view.swf?' + location.search.substring(1),400,925,'videoPlayer');
pages_with_flash[1] = new Array('video_ask.cfm','video_ask.swf?' + location.search.substring(1),400,925,'videoPlayer');
pages_with_flash[2] = new Array('career.cfm','fastfacts.swf?' + location.search.substring(1),605,324,'fastfacts');
pages_with_flash[3] = new Array('career.cfm','rate_career.swf?' + location.search.substring(1),80,352,'rateThisCareer');
pages_with_flash[4] = new Array('genomics_challenge.cfm','genomics_challenge.swf',490,924,'challenge');
pages_with_flash[5] = new Array('login.cfm','mycareers_teaser.swf',270,460,'registerFlash');
pages_with_flash[6] = new Array('orientation.cfm','orientation_vids.swf?' + location.search.substring(1),276,490,'orientationVideo');
pages_with_flash[7] = new Array('sitewide','main_intro.swf',410,630,'genomicContent');

// Page elements declared for global use
var body_tag;
var mother_div;
var banner_div;
var content_div;
var menu_div;
var footer_div;

function init() {
	body_tag = document.getElementsByTagName('BODY')[0];
	mother_div = document.getElementById('mother');
	banner_div = document.getElementById('banner');
	content_div = document.getElementById('content');
	menu_div = document.getElementById('menu');
	footer_div = document.getElementById('footer');
	
	if (swfobject.hasFlashPlayerVersion("8")) {
		runFlash();
	}
	
	setLinks();
	
	//doVideoExtras();
	
	//setVideoLinks();
	
	resourcesPage();
	
	careerPage();
	
	searchDropdowns();
	
	/* ::::::: SHOW CONTENT AREA :::::::  */
	if (content_div) {
		content_div.style.visibility = 'visible';
	}
	/* ::::::: END SHOW CONTENT AREA :::::::  */
	
}

if (w3c) {
	//window.onload=init;
	swfobject.addDomLoadEvent(init);
	}


function searchDropdowns() {
	var search_form = document.getElementById('searchForm');

	if (search_form) {
		var search_selects = search_form.getElementsByTagName('SELECT');
		
		for (var i=0; i<search_selects.length; i++) {
			search_selects[i].onchange = function() {
				search_form.submit();
			}
		}
	}
}



var open_topic;
function careerPage() {
	var career_div = document.getElementById('careerInfo');
	
	if (career_div) {
		//career_div.style.paddingLeft = '300px';
		var c_h3s = career_div.getElementsByTagName('H3');
		var c_divs = career_div.getElementsByTagName('DIV');
		
		c_h3s_by_3 = Math.ceil(c_h3s.length / 3);
		
		//alert('c_h3s.length = '+c_h3s.length+' c_h3s_by_3 = '+c_h3s_by_3);
		
		
		var h3_holder = new Array();
		for (var i=0; i<c_h3s.length; i++) {
			//h3_holder.push(c_h3s[0].parentNode.removeChild(c_h3s[0]));
			h3_holder.push(c_h3s[i].cloneNode(true));
		}
		
		// Clone what is left in the career_div and change id
		var links_div = career_div.cloneNode(true);
		links_div.id = 'careerLinks';
		
		// Clean out career_div
		while (career_div.hasChildNodes()) {
			career_div.removeChild(career_div.lastChild);
		}
		
		career_div.appendChild(links_div);
		
		//var top_link = links_div.removeChild(document.getElementById('returnToTop'));
		//career_div.appendChild(top_link);
		
		
		// Creat main div for the 3 columns
		var topic_div = document.createElement('DIV');
		topic_div.id = 'careerTopics';
		//topic_div.className = 'threeColumn clearfix';
				
		
		for (var i=2; i<c_divs.length; i++) {
			c_divs[i].style.display = 'none';
		}
		
		//alert(h3_holder[0].className);
		h3_holder[0].className += ' selected';
		//c_divs[0].style.display = 'block';
		open_topic = h3_holder[0];
		
		
		for (var i=0; i<h3_holder.length; i++) {
			h3_holder[i].onclick = function() {
				if (open_topic) {
					pieces = open_topic.className.toString().split(' ');
					open_topic.className = pieces[0];
					document.getElementById(pieces[0]).style.display = 'none';
				}
				
				document.getElementById(this.className).style.display = 'block';
				open_topic = this;
				this.className += ' selected';
			}
			topic_div.appendChild(h3_holder[i]);
		}
		
		
		career_div.insertBefore(topic_div, career_div.firstChild);
		
		career_div.style.visibility = 'visible';
	}
	
	
}





var open_topic;
function resourcesPage() {
	var resource_div = document.getElementById('resourcesListing');
	
	if (resource_div) {
		//resource_div.style.paddingLeft = '300px';
		var r_h2s = resource_div.getElementsByTagName('H2');
		var r_divs = resource_div.getElementsByTagName('DIV');
		
		r_h2s_by_3 = Math.ceil(r_h2s.length / 3);
		
		//alert('r_h2s.length = '+r_h2s.length+' r_h2s_by_3 = '+r_h2s_by_3);
		
		
		var h2_holder = new Array();
		for (var i=0; i<r_h2s.length; i++) {
			//h2_holder.push(r_h2s[0].parentNode.removeChild(r_h2s[0]));
			h2_holder.push(r_h2s[i].cloneNode(true));
		}
		
		// Clone what is left in the resource_div and change id
		var links_div = resource_div.cloneNode(true);
		links_div.id = 'resourcesLinks';
		
		// Clean out resource_div
		while (resource_div.hasChildNodes()) {
			resource_div.removeChild(resource_div.lastChild);
		}
		
		resource_div.appendChild(links_div);
		
		var top_link = links_div.removeChild(document.getElementById('returnToTop'));
		resource_div.appendChild(top_link);
		
		
		// Creat main div for the 3 columns
		var topic_div = document.createElement('DIV');
		topic_div.id = 'resourceTopics';
		topic_div.className = 'threeColumn clearfix';
		
		column_divs = new Array();
		// Create and append three columns
		for (var i=1; i<4; i++) {
			column_divs[i] = document.createElement('DIV');
			column_divs[i].className = 'col'+i;
			topic_div.appendChild(column_divs[i]);
		}
		
		
		
		for (var i=2; i<r_divs.length; i++) {
			r_divs[i].style.display = 'none';
		}
		
		//alert(h2_holder[0].className);
		h2_holder[0].className += ' selected';
		//r_divs[0].style.display = 'block';
		open_topic = h2_holder[0];
		
		
		for (var i=0; i<h2_holder.length; i++) {
			h2_holder[i].onclick = function() {
				if (open_topic) {
					pieces = open_topic.className.toString().split(' ');
					open_topic.className = pieces[0];
					document.getElementById(pieces[0]).style.display = 'none';
				}
				
				document.getElementById(this.className).style.display = 'block';
				open_topic = this;
				this.className += ' selected';
			}
			if (i < r_h2s_by_3) {
				column_divs[1].appendChild(h2_holder[i]);
				
			} else if (i > r_h2s_by_3 && i <= (r_h2s_by_3 * 2)) {
				column_divs[2].appendChild(h2_holder[i]);
				
			} else {
				column_divs[3].appendChild(h2_holder[i]);
				
			}
		}
		
		
		resource_div.insertBefore(topic_div, resource_div.firstChild);
		resource_div.style.visibility = 'visible';
	}
	
	
	
}






function doVideoExtras() {
	var ve_dl = document.getElementById('videoExtras');
	var ve_dt;
	var ve_dd;
	//extrasContent
	
	if (ve_dl) {
		ve_dt = ve_dl.getElementsByTagName('DT');
		for (aa=0; aa<ve_dt.length; aa++) {
			ve_dt[aa].assoc_dd = ve_dt[aa].parentNode.getElementsByTagName('DD')[aa];
			ve_dt[aa].assoc_dd.style.display = 'none';
			
			ve_dt[aa].onclick = function() {
				for (bb=0; bb<ve_dt.length; bb++) {
					ve_dt[bb].assoc_dd.style.display = 'none';
				}
				this.assoc_dd.style.display = 'block';
			}
			
		}
		ve_dt[0].assoc_dd.style.display = 'block';
	}
	
	
}
  











function setVideoLinks() {
	var video_links_ul = document.getElementById('videoLinks');
	var video_links_a;
	
	if (video_links_ul) {
		video_links_a = video_links_ul.getElementsByTagName('A');
		for (var aa=0; aa<video_links_a.length; aa++) {
			video_links_a[aa].onclick = function() {
				for (var bb=0; bb<video_links_a.length; bb++) {
					video_links_a[bb].parentNode.className = "";
				}
				this.parentNode.className = 'selected';
				callExternalInterface(this.title);
				return false;
			}
		}
	}
}


function doVideoExtras() {
	var ve_dl = document.getElementById('videoExtras');
	var ve_dt;
	var ve_dd;
	//extrasContent
	
	if (ve_dl) {
		ve_dt = ve_dl.getElementsByTagName('DT');
		for (aa=0; aa<ve_dt.length; aa++) {
			ve_dt[aa].assoc_dd = ve_dt[aa].parentNode.getElementsByTagName('DD')[aa];
			ve_dt[aa].assoc_dd.style.display = 'none';
			
			ve_dt[aa].onclick = function() {
				for (bb=0; bb<ve_dt.length; bb++) {
					ve_dt[bb].assoc_dd.style.display = 'none';
				}
				this.assoc_dd.style.display = 'block';
			}
			
		}
		ve_dt[0].assoc_dd.style.display = 'block';
	}
	
	
}






function setLinks() {
	//OpeningPDF
	var all_links = document.getElementsByTagName('A');
	
	for (var aa=0; aa<all_links.length; aa++) {
		if (all_links[aa].target.toLowerCase() == 'openingpdf') {
			all_links[aa].onclick = function () {
				link_string = this.toString();
				slash_char = link_string.lastIndexOf('/') + 1;
				popupWindow(site_root + 'pdf/index.html?' + link_string.substr(slash_char), this.target, 'menubar=yes,status=yes,scrollbars=yes,resizable=yes,width=785,height=520');
				return false;
				
			}
		}
		if (all_links[aa].target.toLowerCase() == 'externalresource') {
			all_links[aa].onclick = function () {
				popupWindow(this, this.target, 'menubar=yes,status=yes,scrollbars=yes,resizable=yes,width=785,height=520');
				return false;
				
			}
		}
	}
	
	
}


var pdf_loaded = false;
function loadPDF() {
	var pdf_page = document.getElementById('pdfPage');
	if (pdf_loaded == true) {
		location.href = location.search.substr(1);
	}
	if (pdf_page && pdf_loaded == false) {
		pdf_loaded = true;
		setTimeout('loadPDF()',1500);
	}
}

//	Popup window code
var page_position = (parseInt(navigator.appVersion) > 3) ? 'left=0,top=0,screenX=0,screenY=0,' : "";
var popup_features = 'menubar=yes,status=yes,toolbar=yes,scrollbars=yes,resizable=yes,width=785,height=480';

function popupWindow(url, target, features) {
	if (isUndefined(features)) {
		features = popup_features;
	}
	if (isUndefined(target)) {
		target = '_blank';
	}
	var the_window = window.open(url, target, page_position+features);
	the_window.focus();
	return the_window;
}

function linkPopup(src, features) {
	return popupWindow(src.getAttribute('href'),src.getAttribute('target') || '_blank',features);
}//	End Popup window code

//	Utility function [currently used in popupWindow()]
function isUndefined(v) { 
	//	Returns true if [v] is not defined, false otherwise
	//	IE 5.0 does not support the undefined keyword, so we cannot 
	//	do a direct comparison such as v===undefined.
	var undef;
	return v===undef;
}






function ieHoverHelper(parent_id, hover_element, class_name) {
	if (ie6) {
		var rollies = document.getElementById(parent_id).getElementsByTagName(hover_element);
		
		for (aa=0; aa<rollies.length; aa++) {

			rollies[aa].onmouseenter = function() {
				if (this.className == '') {
					this.className = class_name;
				} else {
					this.className = class_name +  ' ' + this.className;
				}
			}
			rollies[aa].onmouseleave = function() {
				if (this.className == class_name) {
					this.className = '';
				} else {
					str = class_name+' ';
					if (this.className.indexOf(str) != -1) {
						remove_class = this.className.split(str);
						this.className = remove_class[1];
					}
				}
			}
		}
	}
}



function runFlash() {
	
	var this_url = location.href;
	var swf_url;
	var swf_name;
	var swf_height;
	var swf_width;
	var swf_element_id;
	var swf_element;
	
	for (var aa=0; aa<pages_with_flash.length; aa++) {
		
		swf_url = pages_with_flash[aa][0];
		swf_name = pages_with_flash[aa][1];
		swf_height = pages_with_flash[aa][2];
		swf_width = pages_with_flash[aa][3];
		swf_element_id = pages_with_flash[aa][4];
		swf_element = document.getElementById(swf_element_id);
		
		if (swf_name == 'main_intro.swf' && !swfobject.hasFlashPlayerVersion("10")) {
			continue;
		}
		
		if ((this_url.indexOf(swf_url) != -1  || swf_url == 'sitewide') && swf_element) {
			
			swf_element.style.height = swf_height + 'px';
			swf_element.style.width = swf_width + 'px';
			insertFlash(swf_name,swf_height,swf_width,swf_element_id);
			
		}
	}
}



var the_ua = navigator.userAgent.toLowerCase();
var web_kit = /webkit/.test(the_ua) ? parseFloat(the_ua.replace(/^.*webkit\/(\d+(\.\d+)?).*$/, "$1")) : false;

//	This function returns the <object> and <embed> tags in variable [oeTags]
function insertFlash(the_swf,the_height,the_width,the_container) {
	var flashTag;
	var container_elem = document.getElementById(the_container);
	var flash_params = { 
		play:'true', 
		quality:'high', 
		scale:'noscale', 
		menu:'false', 
		salign:'lt', 
		wmode:'opaque', 
		bgcolor:'#fff',
		type:'application/x-shockwave-flash'
		}
		
	
	if (isIE && isWin) {
		//+ 'codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">'
		flashTag = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+the_width+'" height="'+the_height+'">';
		flashTag += '<param name="movie" value="'+ the_swf +'" />';
		
		for (var i in flash_params) {
			if (i != 'type') {
				flashTag += '<param name="'+ i +'" value="'+ flash_params[i] +'" />';
			}
		}
		
		flashTag += '</object>';
		
		container_elem.innerHTML = flashTag;
		
	} else if (web_kit && web_kit < 312) {
		var flash_object = document.createElement('embed');
		flash_object.setAttribute('src', the_swf);
		flash_object.setAttribute('height', the_height);
		flash_object.setAttribute('width', the_width);
		
		for (var i in flash_params) {
			flash_object.setAttribute(i, flash_params[i]);
		}
		
		while(container_elem.hasChildNodes()) {
			container_elem.removeChild(container_elem.lastChild);
		}
		container_elem.appendChild(flash_object);
		
	} else {
		var flash_object = document.createElement('object');
		flash_object.setAttribute('data', the_swf);
		flash_object.setAttribute('height', the_height);
		flash_object.setAttribute('width', the_width);
		
		//flash_params.src = the_swf;
		
		for (var i in flash_params) {
			var flash_param = document.createElement('param');
			flash_param.setAttribute('name', i);	
			flash_param.setAttribute('value', flash_params[i]);
			flash_object.appendChild(flash_param);
		}
		
		while(container_elem.hasChildNodes()) {
			container_elem.removeChild(container_elem.lastChild);
		}
		container_elem.appendChild(flash_object);
	}
	container_elem.style.display = 'block';
}



function callExternalInterface(vidName) 
{
   	/* Call a function registered as callPlayBall in the SWF named myMovie. */
   	getMovieName("myMovie").callPlayBall(vidName); 
}
  
/* This utility function resolves the string movieName to a Flash object reference based on browser type. */
function getMovieName(movieName) 
{
	if (navigator.appName.indexOf("Microsoft") != -1) 
	{
   		return window[movieName];
	}
	else 
	{
		return document[movieName];
	}
}