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From 2011.igem.org

//current area/subarea var area = 'overview'; var subarea = 'home'; //the url that's loaded var the_url = window.location.pathname;//the url that's being displayed //the interval var int;

var set_hash = function(path) {//set the hash to the path given

 int = window.clearInterval(int);
 
 //turn the path into a presentable hash
 var hash = path.replace(/http:\/\/2011.igem.org/i, ).replace(/\/Team:Cambridge/i, );
 
 window.location.hash = hash;
 the_url = get_hash(false);
 
 int = setInterval('check_hash();', 500);

}

var get_hash = function(absolute) {

 var hash = window.location.hash.substr(1);
 if(!absolute || (absolute == undefined))
   return "/Team:Cambridge" + hash;
 return "https://2011.igem.org/Team:Cambridge" + hash;

}

var check_hash = function() {//check if the hash has changed (e.g. back button press)

 if(the_url != get_hash(false))
 {
   int = clearInterval(int);//pause
   if(window.location.hash.charAt(1) == '/')
     load_url(get_hash(false));
   int = setInterval('check_hash();', 500);
 }

}

//update the edit, login and logout links after page change var update_links = function() {

 var current_url = get_hash(false);
 $('#edit-link').attr('href', current_url + '?action=edit');
 $('#edit-intro-link').attr('href', '/Team:Cambridge/desc/' + area + '/' + subarea + '?action=edit');
 $('#login-link' ).attr('href', '/wiki/index.php?title=Special:UserLogin&returnto=' + current_url);
 $('#logout-link').attr('href', '/wiki/index.php?title=Special:UserLogout&returnto=' + current_url);

}

var is_internal = function(obj) {

 if($(obj).hasClass('cam-external')) return false;
 return /\/Team:Cambridge/i.test($(obj).attr("href"));

} var is_external = function(obj) { return !is_internal(obj);}

var areas = [

 [/\/Team:Cambridge\/project/i, 'project',],
 [/\/Team:Cambridge\/(experiments|constructs|protocols|safety|labwork)/i, 'labwork',],
 [/\/Team:Cambridge\/society/i, 'society',],
 [/\/Team:Cambridge\/team/i, 'team',],
 [/\/Team:Cambridge/i, 'overview'],
 [/./i, 'overview'],

];

var subareas = {

 'overview': [
   [/\/Team:Cambridge\/Media/i, 'media'],
   [/\/Team:Cambridge\/Parts/i, 'parts'],
   [/\/Team:Cambridge\/Blog/i, 'blog'],
   [/./i, 'home'],

],

 'project':  [
   [/\/Team:Cambridge\/Project\/Background/i, 'background'],
   [/\/Team:Cambridge\/Project\/Microscopy/i, 'microscopy'],
   [/\/Team:Cambridge\/Project\/in_vitro/i, 'invitro'],
   [/\/Team:Cambridge\/Project\/in_vivo/i, 'invivo'],
   [/\/Team:Cambridge\/Project\/gibthon/i, 'gibthon'],
   [/\/Team:Cambridge\/Project\/conclusion/i, 'conclusion'],
   [/\/Team:Cambridge\/Project/i, 'overview'],

],

 'labwork':  [
   [/\/Team:Cambridge\/Experiments\/Plasmid_Constructs/i, 'constructs'],
   [/\/Team:Cambridge\/experiments/i, 'experiments'],
   [/\/Team:Cambridge\/protocols/i, 'protocols'],
   [/\/Team:Cambridge\/safety/i, 'safety'],
   [/\/Team:Cambridge\/labwork/i, 'overview'],

],

 'society':  [
   [/\/Team:Cambridge\/Society\/survey/i, 'survey'],
   [/\/Team:Cambridge\/Society\/interviews/i, 'interviews'],
   [/\/Team:Cambridge\/Society/i, 'overview'],

],

 'team':     [
   [/\/Team:Cambridge\/Team\/Students/i, 'students'],
   [/\/Team:Cambridge\/Team\/Academics/i, 'academics'],
   [/\/Team:Cambridge\/Team\/Sponsors/i, 'sponsors'],
   [/\/Team:Cambridge\/Team/i, 'overview'],

], };

var get_main_area = function(path) {

 for ( var a in areas)

{ if(areas[a][0].test(path)) { return areas[a][1]; } }

 return 'default';

}

var get_sub_area = function(path, area) {

 if(area == 'default') return 'default';
 for ( var a in subareas[area])

{ if(subareas[area][a][0].test(path)) { return subareas[area][a][1]; } }

 return 'overview';

}

var get_area = function(path) { //figure out which area of the site we are in

 if(path == undefined)

var path = location.pathname; var ar = get_main_area(path); var sub = get_sub_area(path, ar); return [ar, sub]; }

var apply_area = function() { $('.cam-selected').removeClass('cam-selected'); $('.cam-menu-item.cam-' + area).addClass('cam-selected'); $('.cam-' + area + '-' + subarea).addClass('cam-selected'); }

var set_area = function(path) { var as = get_area(path); area = as[0]; subarea = as[1]; apply_area(); }

var colorize_links = function($container) //colourise all the links in the container based on where the go {

 $container.find('a').each( function(i) {
   var $this = $(this);
   if($this.hasClass('cam-color-exempt'))
     continue;
   var ar = ;
   if(is_external($this))
     ar = 'ext';
   else 
     ar = get_main_area($this.attr('href'));
   
   $(this).addClass('cam-' + ar);
 });

}

var loading_timeout;

var show_loading = function() {

 //only show the loading bar if it's taking more than 500ms to display
 loading_timeout = setTimeout("$('#cam_loading').slideDown('fast');", 500);

}

var hide_loading = function() {

 clearTimeout(loading_timeout);
 $('#cam_loading').slideUp('fast');

}

var load_url = function(url) {

 if(url == undefined)
   url = '/Team:Cambridge';

 var load = url + '?action=render';
 console.log('loading: ' + url);
 show_loading();
 $.ajax({
   'url': load,
   'dataType': 'html',
   'error': function(jqXHR, textStatus, errorThrown) {
     hide_loading();

var $c = $('

AjaxError

Got error "' + errorThrown + '" while attempting to load url "' + load + '"

');

     $('#cam_pagecontent').hide().html($c).show();	
     window.scrollTo(0,0);	
   },
   'success': function(data){
     var $c = $('#wiki_content', data);
     $('#cam_pagecontent').hide().html($c.html()).show();	
     colorize_links($('#cam_pagecontent'));
     window.scrollTo(0,0);
     hide_loading();
   },
 });
 set_hash(url);
 set_area(url);
 $('#cam_desc').introduction('setArea', area, subarea);
 update_links();

};

var wiki_main = function() {

 $('.cam-menu-item a').mouseenter( function(event) {//in

$(event.currentTarget).next().children('.cam-menu-drop').slideDown('fast');

 });
 $('.cam-menu-item').mouseleave( function(event) {//out
   $(event.currentTarget).find('.cam-menu-drop').slideUp('fast');
 }).click( function(event) {//hide on click
   $(event.currentTarget).find('.cam-menu-drop').slideUp('fast');
 });

 $('.cam-social-link').hover(
   function(event) {
     $(this).children().animate({top:0}, 75);
   },
   function(event) {
     $(this).children().animate({'top':12}, 250);
   }		
 ).click( function() {
   window.location = $(this).attr('href');
 });

 $('a').live('click', function(event) {
   if(is_internal(this))
   {
     event.preventDefault();
     load_url($(this).attr('href'));
     return false;
   }
   return true;
 });

$('#cam_topbar a').hover( function() { $(this).prev('.cam-ui-icon').addClass('cam-hover'); }, function() { $(this).prev('.cam-ui-icon').removeClass('cam-hover'); } );

 int = window.setInterval('check_hash();', 500);
 
 if((window.location.hash == ) || (window.location.hash == undefined))
 {
   console.log('no initial hash');
   set_area(the_url);
   set_hash(the_url);
   update_links();
   colorize_links($('#wiki_content'));
   $('#cam_desc').introduction('setArea', area, subarea);
 }
 else
 {
   var hash = get_hash();
   console.log('initial_hash: ' + hash);
   set_area(hash);
   load_url(hash);
 }

}