var dtCh= '.';
var minYear=1900;
var maxYear=2100;
var divIsClosed = true;

// Allgemeine Funktionen

String.prototype.trim = function() {
	return this.replace(/^\s+|\s+$/g,"");
}
String.prototype.ltrim = function() {
	return this.replace(/^\s+/,"");
}
String.prototype.rtrim = function() {
	return this.replace(/\s+$/,"");
}

Array.prototype.indexOf = function(el) {
    for (var i=0; i<this.length;i++)
    {
        if (this[i] == el) return i;
    }
    return -1;
}

Array.prototype.deleteAt = function(index)
{
    for (var i=index; i<this.length-1;i++)
    {
        this[i] = this[i + 1];
    }
    this.pop();
} 

Array.prototype.insertAt = function(index, value)
{
    this.splice(index, '', value);
}

Array.prototype.moveItemAt = function(fromIndex, toIndex)
{
    var tmp = this[fromIndex];
    
    if (fromIndex > toIndex)
    {
       for (var i=fromIndex; i > toIndex; i--)
       {
           this[i] = this[i-1]; 
       }
    }
    else if (toIndex > fromIndex)
    {
        for (var i=fromIndex; i < toIndex; i++)
        {
           this[i] = this[i+1];
        }
    }
    this[toIndex] = tmp;
}

Array.prototype.array_rand = function(size) 
{
	if (size > this.length) 
	{
		size = this.length;
	} 
	return this.sort(function() { return Math.random() - Math.random() }).slice(0, size);
}

function makeURl(s) {
    var i;
    var lastChar = '#';
    var returnString = '';
    s = s.toLowerCase();
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        switch (c)
        {
            case 'ö':
              returnString += 'oe';
              lastChar = c;
              break;
            case 'ä':
              returnString += 'ae';
              lastChar = c;
              break;
            case 'ü':
              returnString += 'ue';
              lastChar = c;
              break;
            case 'Ö':
              returnString += 'oe';
              lastChar = c;
              break;
            case 'Ä':
              returnString += 'ae';
              lastChar = c;
              break;
            case 'Ü':
              returnString += 'ue';
              lastChar = c;
              break;
            case 'ß':
              returnString += 'ss';
              lastChar = c;
              break;
            default:
              if (((c >= '0') && (c <= '9')) ||
                  ((c >= 'a') && (c <= 'z')))
              {
                  returnString += c;
                  lastChar = c;
              }
              if (c == ' ' && lastChar != '-')
              {
                  returnString += '-';
                  lastChar = '-';
              }
              break;
        }
    }
    return returnString;
}

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function stripInvalidChars(s){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
		if (isInteger(c)) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}

function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	
	if (pos1==-1 || pos2==-1){
		//alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		//alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		//alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date")
		return false
	}
    return true
}

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: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			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"
		}
	]

};

BrowserDetect.init();

function getTopPos(inputObj)
{		
  var returnValue = inputObj.offsetTop;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML'){
  		returnValue += inputObj.offsetTop;
  		if(document.all)returnValue+=inputObj.clientTop;
  	}
  }
  return returnValue;
}

function getLeftPos(inputObj)
{
  var returnValue = inputObj.offsetLeft;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML'){
  		returnValue += inputObj.offsetLeft;
  		if(document.all)returnValue+=inputObj.clientLeft;
  	}
  }
  return returnValue;
}

function AddShadow(el, border)
{
    if (!el) return;
    
    var exists = document.getElementById(el.id + '_shadow_o_container');
    
    if (!exists)
    {
        var elParent = el.parentNode;
        var elNextSibling = el.nextSibling;
        
        var shadowO = document.createElement('div');
        var shadowS = document.createElement('div');    
        
        var elHeight = parseInt(el.style.height) + border;
        var elWidth = parseInt(el.style.width) + 14 + border;
                
        shadowO.id = el.id + '_shadow_o_container';
        shadowO.className = 'shadow-o-container';
        shadowO.style.height = elHeight + 'px';
        shadowO.innerHTML = '<div class="shadow-no"></div><div class="shadow-o" style="height:' + (elHeight - 20) + 'px"></div></div>';
        
        shadowS.id = el.id + '_shadow_s_container';
        shadowS.className = 'shadow-s-container';
        shadowS.style.width = elWidth + 'px';
        shadowS.innerHTML = '<div class="shadow-sw"></div><div class="shadow-s" style="width:' + (elWidth - 20 - 14) + 'px"></div><div class="shadow-so"></div>';
        
        if (elNextSibling)
        {
            elParent.insertBefore(shadowO, elNextSibling);
            elParent.insertBefore(shadowS, elNextSibling);
        }
        else
        {
            elParent.appendChild(shadowO);
            elParent.appendChild(shadowS);
        }
    }
    
}

addEvent = function(el, evname, func) 
{
	if (el.attachEvent) { // IE
		el.attachEvent("on" + evname, func);
	} else if (el.addEventListener) { // Gecko / W3C
		el.addEventListener(evname, func, true);
	} else {
		el["on" + evname] = func;
	}
}

removeEvent = function(el, evname, func) 
{
	if (el.detachEvent) { // IE
		el.detachEvent("on" + evname, func);
	} else if (el.removeEventListener) { // Gecko / W3C
		el.removeEventListener(evname, func, true);
	} else {
		el["on" + evname] = null;
	}
}

function toggleLinkContainer(el)
{
    var linkContainer = document.getElementById('LinkContainer');
    if (divIsClosed)
    {
        linkContainer.style.display = 'block';
        el.innerHTML = 'weniger Einträge';
    } else
    {
        linkContainer.style.display = 'none';
        el.innerHTML = 'mehr Einträge';
    }
    
    divIsClosed = !divIsClosed;
}