//Menugenerator

var ide_HTML = new Array();
ide_HTML['standard'] = 	'<ul>'+
					'<li><a href="#" onclick="if (efa_fontSize) { efa_fontSize.setSize(+1); return false; }" title="Schrift vergr&ouml;&szlig;ern"><img src="/tmpl_images/bf_plus.gif" width="18" height="18" alt="Schrift vergr&ouml;ssern"/></a></li>'+
					'<li><a href="#" onclick="if (efa_fontSize) { efa_fontSize.setSize(-1); return false; }" title="Schrift verkleinern"><img src="/tmpl_images/bf_minus.gif" width="18" height="18" alt="Schrift verkleinern" /></a></li>'+
					'<li><a href="#" onClick="setActiveStyleSheet(\'standard\'); return false;" title="Darstellung: Standard"><img src="/tmpl_images/bf_reset.gif" width="18" height="18" alt="Standarddarstellung"/></a></li>'+					
					'<li class="last"><a href="http://www.zbw.eu/barrierefrei.htm" title="barrierefrei">Barrierefrei?</a></li>'+													
					'</ul>';
					
ide_HTML['bigtext'] = 	ide_HTML['standard'];


ide_HTML['textonly'] = 	ide_HTML['standard'];

function ide_tools(title) {
	this.w3c = (document.getElementById);
	this.ms = (document.all);
	this.userAgent = navigator.userAgent.toLowerCase();
	this.isOldOp = ((this.userAgent.indexOf('opera') != -1)&&(parseFloat(this.userAgent.substr(this.userAgent.indexOf('opera')+5)) <= 7));
	if ((this.w3c || this.ms) && !this.isOldOp) {
		if(title == 'standard'){
			efa_fontSize.setSize(0);
		}
		a = document.getElementById('ide_tools_gui');
		a.innerHTML = ide_HTML[title];
	}
}

//Cookies
function Cookiemanager(name,defaultExpiration,expirationUnits,defaultDomain,defaultPath) {
	
	this.name = name;
	
	this.defaultExpiration = this.getExpiration(defaultExpiration,expirationUnits);
	
	
	this.defaultDomain = (defaultDomain)?defaultDomain:(document.domain.search(/[a-zA-Z]/) == -1)?document.domain:document.domain.substring(document.domain.indexOf('.') + 1,document.domain.length);
	
	this.defaultPath = (defaultPath)?defaultPath:'/';
	
	this.cookies = new Object();
	
	this.expiration = new Object();
	
	this.domain = new Object();
	
	this.path = new Object();
	
	window.onunload = new Function (this.name+'.setDocumentCookies();');
	
	this.getDocumentCookies();
	}



Cookiemanager.prototype.getExpiration = function(expiration,units) {
	
	expiration = (expiration)?expiration:7;
	
	units = (units)?units:'days';
	
	var date = new Date();
	
	switch(units) {
		case 'years':
			date.setFullYear(date.getFullYear() + expiration);
			break;
		case 'months':
			date.setMonth(date.getMonth() + expiration);
			break;
		case 'days':
			date.setTime(date.getTime()+(expiration*24*60*60*1000));
			break;
		case 'hours':
			date.setTime(date.getTime()+(expiration*60*60*1000));
			break;
		case 'minutes':
			date.setTime(date.getTime()+(expiration*60*1000));
			break;
		case 'seconds':
			date.setTime(date.getTime()+(expiration*1000));
			break;
		default:
			date.setTime(date.getTime()+expiration);
			break;
		}
	
	return date.toGMTString();
	}

Cookiemanager.prototype.getDocumentCookies = function() {
	var cookie,pair;
	
	var cookies = document.cookie.split(';');
	
	var len = cookies.length;
	for(var i=0;i < len;i++) {
		cookie = cookies[i];
		
		while (cookie.charAt(0)==' ') cookie = cookie.substring(1,cookie.length);
		
		pair = cookie.split('=');
		
		this.cookies[pair[0]] = pair[1];
		}
	}

Cookiemanager.prototype.setDocumentCookies = function() {
	var expires = '';
	var cookies = '';
	var domain = '';
	var path = '';
	for(var name in this.cookies) {
		
		expires = (this.expiration[name])?this.expiration[name]:this.defaultExpiration;
		
		path = (this.path[name])?this.path[name]:this.defaultPath;
		
		domain = (this.domain[name])?this.domain[name]:this.defaultDomain;
		
		cookies = name + '=' + this.cookies[name] + '; expires=' + expires + '; path=' + path + '; domain=' + domain;
		document.cookie = cookies;
		}
	return true;
	}


Cookiemanager.prototype.getCookie = function(cookieName) {
	var cookie = this.cookies[cookieName]
	return (cookie)?cookie:false;
	}







Cookiemanager.prototype.setCookie = function(cookieName,cookieValue,expiration,expirationUnits,domain,path) {
	this.cookies[cookieName] = cookieValue;
	
	if (expiration) this.expiration[cookieName] = this.getExpiration(expiration,expirationUnits);
	
	if (domain) this.domain[cookieName] = domain;
	if (path) this.path[cookieName] = path;
	return true;
	}

var cookieManager = new Cookiemanager('cookieManager',1,'years');


//Styleswitch

function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel") && a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) {
	a.disabled = false;
	cookieManager.setCookie("style", title, 365);
	ide_tools(title);
      }
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}



//Fontresizer

var efa_default = 69;											
var efa_increment = 10;											
var max_increment = 120;
var min_increment = 60; 										

var efa_bigger = ['<li>',					
				  '<span>gr&ouml;sser</span>',				
				  'Schrift gr&ouml;sser stellen',				
				  'bt_plus',											
				  '',											
				  '',											
				  '',											
				  '',											
				  '',											
				  '',											
				  '</li>'											
				  ]

var efa_reset = ['<li>',
				 '<span>standard</span>',				
				 'Schriftgr&ouml;&szlig;e normal',	
				  'bt_standard',											
				  '',											
				  '',											
				  '',											
				  '',											
				  '',											
				  '',											
				  '</li>'											
				  ]

var efa_smaller = ['<li>',
				   '<span>kleiner</span>',				
				   'Schrift kleiner stellen',							
				   'bt_minus',											
				   '',											
				   '',											
				   '',											
				   '',											
				   '',											
				   '',											
				   '</li>'									
				   ]

function Efa_Fontsize(increment,bigger,reset,smaller,def) {
	
	this.w3c = (document.getElementById);
	
	this.ms = (document.all);
	
	this.userAgent = navigator.userAgent.toLowerCase();
	
	
	
	this.isOldOp = ((this.userAgent.indexOf('opera') != -1)&&(parseFloat(this.userAgent.substr(this.userAgent.indexOf('opera')+5)) <= 7));
	
	
	
	
	
	
	
	
	if ((this.w3c || this.ms) && !this.isOldOp && !this.isMacIE) {
		
		this.name = "efa_fontSize";
		
		this.cookieName = 'efaSize';
		
		this.increment = increment;
		
		this.def = def;
		
		this.defPx = Math.round(16*(def/100))
		
		this.base = 1;
		
		this.pref = this.getPref();
		
		this.testHTML = '<div id="efaTest" style="position:absolute;visibility:hidden;line-height:1em;">&nbsp;</div>';
		
		this.biggerLink = this.getLinkHtml(1,bigger);
		
		this.resetLink = this.getLinkHtml(0,reset);
		
		this.smallerLink = this.getLinkHtml(-1,smaller);
		
	} else {
		
		
		this.biggerLink = '';
		this.resetLink = '';
		this.smallerLink = '';
		
		
		this.efaInit = new Function('return true;');
	}
	
	
	this.allLinks = this.biggerLink + this.resetLink + this.smallerLink;
}

Efa_Fontsize.prototype.efaInit = function() {
		
		document.writeln(this.testHTML);
		
		this.body = (this.w3c)?document.getElementsByTagName('body')[0].style:document.all.tags('body')[0].style;
		
		this.efaTest = (this.w3c)?document.getElementById('efaTest'):document.all['efaTest'];
		
		var h = (this.efaTest.clientHeight)?parseInt(this.efaTest.clientHeight):(this.efaTest.offsetHeight)?parseInt(this.efaTest.offsetHeight):999;
		
		
		
		if (h < this.defPx) this.base = this.defPx/h;
		
		
		this.body.fontSize = Math.round(this.pref*this.base) + '%';
}


Efa_Fontsize.prototype.getLinkHtml = function(direction,properties) {
	
	
	
	var html = properties[0] + '<a href="#" onclick="efa_fontSize.setSize(' + direction + '); return false;"';
	
	html += (properties[2])?'title="' + properties[2] + '"':'';
	
	html += (properties[3])?'class="' + properties[3] + '"':'';
	
	html += (properties[4])?'id="' + properties[4] + '"':'';
	
	html += (properties[5])?'name="' + properties[5] + '"':'';
	
	html += (properties[6])?'accesskey="' + properties[6] + '"':'';
	
	html += (properties[7])?'onmouseover="' + properties[7] + '"':'';
	
	html += (properties[8])?'onmouseout="' + properties[8] + '"':'';
	
	html += (properties[9])?'onfocus="' + properties[9] + '"':'';
	
	
	return html += '>'+ properties[1] + '<' + '/a>' + properties[10];
}

Efa_Fontsize.prototype.getPref = function() {
	
	var pref = this.getCookie(this.cookieName);
	
	if (pref) return parseInt(pref);
	
	else return this.def;
}


Efa_Fontsize.prototype.setSize = function(direction) {
	
	
	
	
	
	temp = (direction)?this.pref+(direction*this.increment):this.def;
	
	if(Math.round(temp*this.base) < max_increment && Math.round(temp*this.base) > min_increment){
		this.pref = temp;
		this.setCookie(this.cookieName,this.pref);
	
		this.body.fontSize = Math.round(this.pref*this.base) + '%';
	}
}

Efa_Fontsize.prototype.getCookie = function(cookieName) {
	var cookie = cookieManager.getCookie(cookieName);
	return (cookie)?cookie:false;
}

Efa_Fontsize.prototype.setCookie = function(cookieName,cookieValue) {
	return cookieManager.setCookie(cookieName,cookieValue);
}

var  efa_fontSize = new Efa_Fontsize(efa_increment,efa_bigger,efa_reset,efa_smaller,efa_default);