/*
	graphical user interface scripts

*/

if (document.addEventListener) 
{
    document.addEventListener("DOMContentLoaded", init, null);
}

// fallback
window.onload = init;

function init()
{
	//make sure we only get here once
	if (arguments.callee.done)
	{
		return;
	}
	arguments.callee.done = true;
	
	prepare_menu();
	add_events_links();
	add_onclick_meeting();
	hide_reactform();
	hilite_table();
	focus_login();
	add_click_searchbox();
	//BrowserDetect.init();
}

function add_events_links()
{
	var links = document.getElementsByTagName('a');
	var img = '&nbsp;<img src="/site/default/images/icons/newwindow.png" alt="(Deze link opent in een nieuw venster)" />';
	for (var i = 0; i < links.length; i++)
	{
		switch (links[i].className)
		{
			case 'newwindow':
				links[i].setAttribute('title', links[i].getAttribute('title') + ', opent in een nieuw venster.');  
				links[i].onclick = newwin;
				links[i].innerHTML = links[i].innerHTML + img;
				break;
		}
	}
}

function newwin()
{
	window.open(this.href,'_blank');
	return false;
}

function add_click_searchbox()
{
	set_click('sq');
	set_click('q');
}

function set_click(id)
{
	var s_box = document.getElementById(id);
	if (s_box)
	{
		s_box.onclick = function(){clear_sbox(this)};
	}
}

function clear_sbox(a_box)
{
	if (a_box.value == 'Zoeken')
	{
		a_box.value = '';
	}
}

/* ----- ---- - --- -- -- - ----- -- --- - ---- - -*/

function set(id,display)
{
	var obj	=	document.getElementById(id);
	if(obj)
	{
		obj.style.display	=	display;
	}
}

/* ----- ---- - --- -- -- - ----- -- --- - ---- - -*/

function prepare_menu()
{
	var menu = document.getElementById('subnavlist')
	if (menu)
	{
		collapse_all(menu);
		open_selected(menu);
		apply_events(menu);
	}
}

function toggle(a_item, docollapse)
{
	var uls = a_item.getElementsByTagName('ul')[0];
	var a = a_item.getElementsByTagName('a')[0];

	if (a.href == 'javascript:void(0)')
	{
		if (uls.style.display == 'none' || uls.style.display == '')
		{
			uls.style.display = 'block';
			a_item.className = 'opened';
		}
		else if (docollapse)
		{
			uls.style.display = 'none';
			a_item.className = 'closed';
		}
	}
}

function collapse_all(menu)
{
	var uls = menu.getElementsByTagName('ul');
	for (var n = 0; n < uls.length; n++)
	{
		uls[n].style.display = 'none';
	}
}

function open_selected(menu)
{
	var lis = menu.getElementsByTagName('li');
	var loc = String(document.location);
	for (var n = 0; n < lis.length; n++)
	{
		var href = lis[n].getElementsByTagName('a')[0];
		if (href == loc)
		{
		
			href.className = 'selected';
			p = lis[n].parentNode;

			// open all parents
			while(p.getAttribute('id') != 'subnavlist')
			{
				if (p.className == 'closed')
				{
					p.className = 'opened';
				}
				if (p.className ==  'folder index')
				{
					p.className = p.className + ' opened';
				}
				p.style.display='block';
				p = p.parentNode;
			}
			
			// open children
			ul = lis[n].getElementsByTagName('ul')[0];
			if (ul)
			{
				ul.style.display = 'block';
			}
			break;
		}
	}

}


function apply_events(menu)
{
	var lis = menu.getElementsByTagName('li');
	for (var n = 0; n < lis.length; n++)
	{
		if (lis[n].getElementsByTagName('ul').length > 0)
		{
			a = lis[n].getElementsByTagName('a')[0];
			if (lis[n].className.indexOf('index') == -1)
			{
				a.setAttribute('href','javascript:void(0)');
			}
			if (lis[n].className.indexOf('opened') == -1)
			{
				lis[n].className = 'closed';
			}
			// nasty, but neccesary for IE...
			a.onclick = function()
						{
							toggle(this.parentNode.parentNode,true)
						};
			
			// make sure people using a keyboard can access the links
			a.onkeyup = function()
						{
							toggle(this.parentNode.parentNode,false)
						};
		}
	}
}

function setfocus(id)
{
	var field = document.getElementById(id);
	if (field)
	{
		field.focus();
		flash(id, 1);
	}
}

function flash (id, pass)
{
	var field = document.getElementById(id);
	border = '2px solid red';
	if (pass % 2 == 0)
	{
		border = '2px dashed white';
	}
	field.style.border = border;
	if (pass < 15)
	{
		pass ++
		setTimeout("flash('" + id+ "','" + pass + "')",50);
	}
}

function hide_reactform()
{
	if(String(document.location).indexOf('eageer/') == -1)
	{
		var obj	=	document.getElementById('reactform');
		if(obj)
		{
			obj.style.display	=	'none';
		}
	}
}

function show_reactform()
{
	var obj	=	document.getElementById('reactform');
	if(obj)
	{
		if(obj.style.display == 'block')
		{
			hide_reactform();
		}
		else
		{
			obj.style.display	=	'block';
		}
	}
}

/* ----- ---- - --- -- -- - ----- -- --- - ---- - -*/

function hilite_table()
{
	if(document.getElementById && document.createTextNode)
 	{
   		var tables	=	document.getElementsByTagName('table');
   		for (var i=0;i<tables.length;i++)
   		{
    		if(tables[i].className=='hilite')
    		{
     			var trs=tables[i].getElementsByTagName('tr');
     			for(var j=0;j<trs.length;j++)
     			{
					if(trs[j].parentNode.nodeName=='TBODY' && trs[j].parentNode.nodeName!='TFOOT')
					{
						trs[j].onmouseover=function()
						{
							this.className += ' active';
							return false;
						}
       					trs[j].onmouseout=function()
       					{
       						this.className = this.className.replace(/active/g,'');
       						return false;
       					}
     				}
    			}
   			}
  		}
 	}
}

/* ----- ---- - --- -- -- - ----- -- --- - ---- - -*/

function add_onclick_meeting()
{
	var tables	=	document.getElementsByTagName('table');
	for (var i=0;i<tables.length;i++)
	{
		if(tables[i].className=='hilite')
		{
 			var trs=tables[i].getElementsByTagName('tr');
 			for(var j=0;j<trs.length;j++)
 			{
 				if(trs[j].parentNode.nodeName=='TBODY' && trs[j].parentNode.nodeName!='TFOOT')
				{
					var id		=	trs[j].getAttribute('id');
					if(id.indexOf('agendapunt') != -1)
					{
						var as	=	trs[j].getElementsByTagName('A');
						for(var k=0;k < as.length;k++)
						{
							as[k].onclick=function()
							{
								var id	=	this.parentNode.parentNode.id;
								var id	=	id.replace(/agendapunt/g,'');
								var idx	=	id.split('_');
								set_active(idx[0],idx[1],true);
								scroll(0, 0);
								//move_sidebar_verg(this.parentNode);
							}
							as[k].setAttribute('href','javascript:void(0)');
						}
					}
				}
 			}
 		}
 	}
}

function move_sidebar_verg(clicked)
{
	var sbar = $('sidebar_verg');
	var xy = Position.cumulativeOffset(clicked);
	
	var newy = xy[1] - 234;
	//verschillende browsers zijn het niet eens over
	//de positie...
	if (BrowserDetect.browser == 'Explorer')
	{
		// NOTE: gebruik dit soort code alleen als je
		// weet wat je doet. Over het algemeen wil
		// je namelijk testen op functionaliteit, niet
		// op versie. 
		if (BrowserDetect.version == 6)
		{
			newy -= 52;
		}
		else if (BrowserDetect.version == 7)
		{
			newy -= 45;
		}
	}
	
	// afhankelijk van de vormgeving hier
	// 'paddingTop', 'marginTop' of, bij absolute 
	// positionering, 'top' gebruiken
	sbar.style.paddingTop = newy + 'px';	
	sbar.style.paddingBottom =  '20px';
}

/* ----- ---- - --- -- -- - ----- -- --- - ---- - -*/

function focus_login()
{
	var obj	=	document.getElementById('name');
	if (obj)
	{
		setfocus_only('name');
	}
}

function setfocus_only(id)
{
	var field = document.getElementById(id);
	if (field)
	{
		field.focus();
	}
}

/*
	http://www.quirksmode.org/js/detect.html
*/

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{
			string: navigator.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};