Array.prototype.contains = function (elem) {
	var i;
	for (i = 0; i < this.length; i++) 
	{
		if (this[i] == elem) 
		{
			return true;
		}
	}

	return false;
	};

	


function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

var urlAddress = "http://www.hypergurl.com/graphics.html";
var pageName = "Free Graphics,Hypergurl";

function addToFavorites() 
{
	if (window.external) 
	{
		window.external.AddFavorite(urlAddress,pageName);
	} 
	else 
	{ 
		alert("Sorry! Your browser doesn't support this function.");
	}
}

function MM_validateForm() { //v4.0
	var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
	for (i=0; i<(args.length-2); i+=3) 
	{ 
		test=args[i+2]; val=MM_findObj(args[i]);
		if (val) { nm=val.name; if ((val=val.value)!="") 
		{
			if (test.indexOf('isEmail')!=-1) 
			{ 
				p=val.indexOf('@');
				if (p<1 || p==(val.length-1)) errors+='- '+nm+' muss eine eMailadresse sein.\n';
			} 
			else if (test.indexOf('isFon')!=-1) // telefon check extension (C) Christoph Mitsch 2008
			{ 
				//alert ("isFon works");
				
				var string=val;
				var al = new Array (1,2,3,4,5,6,7,8,9,0,"+"," ","-","/","(",")");
				for (l=0;l<string.length;l++) if (!al.contains(string.substr(l,1))) err='- '+nm+' muss eine Telefonnummer sein.\n';
				if (string.length<5) err='- '+nm+' muss eine Telefonnummer sein.\n';
				errors+=err;
			} 
			else if (test!='R') 
			{ 
				num = parseFloat(val);
				if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
				if (test.indexOf('inRange') != -1) 
				{ 
					p=test.indexOf(':');
					min=test.substring(8,p); max=test.substring(p+1);
					if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
				} 
			} 
		} else if (test.charAt(0) == 'R') errors +='- '+nm+'\n'; }
	} 
	if (errors) alert('Folgende Felder enthalten Fehler:\n\n'+errors);
	document.MM_returnValue = (errors == '');
}

var min=8;
var max=18;
function increaseFontSize() {
   var p = document.getElementsByTagName('div');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
      p[i].style.fontSize = s+"px"
   }
}
function decreaseFontSize() {
   var p = document.getElementsByTagName('div');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
   }   
}