/*

===================================================
XHTML/CSS/DHTML Semantically correct drop down menu 
===================================================
Author: Sam Hampton-Smith
Site: http://www.hampton-smith.com

Description:	This script takes a nested set of <ul>s
		and turns it into a fully functional
		DHTML menu. All that is required is 
		the correct use of class names, and
		the application of some CSS.
		
Use:		Please leave this information at the
		top of this file, and it would be nice
		if you credited me/dropped me an email
		to let me know you have used the menu.
		sam AT hampton-smith.com


---------------------------------------------------
Credits: 	Inspiration/Code borrowed from Dave Lindquist (http://www.gazingus.org)
		Menu hide functionality was aided by some code I found on http://www.jessett.com/

*/


	var currentMenu = null;
	var mytimer = null;
	var timerOn = false;
	var opera = window.opera ? true : false;

	if (!document.getElementById)
		document.getElementById = function() { return null; }
	
	function initialiseMenu(menu, starter, root) {
//		var menuId = menu.attributes(0).value;
		var leftstarter = false;
	
		if (menu == null || starter == null) return;
			currentMenu = menu;
	
		starter.onmouseover = function() {
			if (currentMenu) {
				//alert(this.parentNode.parentNode.id + ' ' + currentMenu.id);
				if (this.parentNode.parentNode!=currentMenu) {
					currentMenu.style.visibility = "hidden";

				}
				if (this.parentNode.parentNode==root) {
					tempCurrentMenu = currentMenu
					while (tempCurrentMenu.parentNode.parentNode!=root) {
						tempCurrentMenu.parentNode.parentNode.style.visibility = "hidden";
						tempCurrentMenu = tempCurrentMenu.parentNode.parentNode;
					}
				}
				currentMenu = null;
				this.showMenu();
	        	}
		}
	
		menu.onmouseover = function() {
			if (currentMenu) {
				currentMenu = null;
				this.showMenu();
	        	}
		}	
	
		starter.showMenu = function() {
			if (!opera) {
				if (this.parentNode.parentNode==root) {
					menu.style.left = this.offsetLeft + "px";
					menu.style.top = this.offsetTop + this.offsetHeight + "px";
				}
				else {
				 	menu.style.left = this.offsetLeft + this.offsetWidth + "px";
				 	menu.style.top = this.offsetTop + "px";
				}
			}
			else {
				if (this.parentNode.parentNode==root) {
					menu.style.left = this.offsetLeft + "px";
					menu.style.top = this.offsetHeight + "px";
				}
				else {
				 	menu.style.left = this.offsetWidth + "px";
//					alert(this.offsetTop);
				 	menu.style.top = this.offsetTop + "px"; //menu.style.top - menu.style.offsetHeight + "px";
				}

			}
			menu.style.visibility = "visible";
			currentMenu = menu;
		}

		starter.onfocus	 = function() {
			starter.onmouseover();
		}
	
		menu.onfocus	 = function() {
//			currentMenu.style.visibility="hidden";
		}

		menu.showMenu = function() {
			menu.style.visibility = "visible";
			currentMenu = menu;
			stopTime();
		}

		menu.hideMenu = function()  {
			if (!timerOn) {
				//alert(this.id);
				mytimer = setInterval("killMenu('" + this.id + "', '" + root.id + "');", 500);
				timerOn = true;
				for (var x=0;x<menu.childNodes.length;x++) {
					if (menu.childNodes[x].nodeName=="LI") {
						if (menu.childNodes[x].getElementsByTagName("UL").length>0) {
							menuItem = menu.childNodes[x].getElementsByTagName("UL").item(0);
							menuItem.style.visibility = "hidden";
						}
					}
				}
			}
		}

		menu.onmouseout = function(event) {
			this.hideMenu();
		}

		starter.onmouseout = function() {
			for (var x=0;x<menu.childNodes.length;x++) {
				if (menu.childNodes[x].nodeName=="LI") {
					if (menu.childNodes[x].getElementsByTagName("UL").length>0) {
						menuItem = menu.childNodes[x].getElementsByTagName("UL").item(0);
						menuItem.style.visibility = "hidden";
					}
				}
			}
			menu.style.visibility = "hidden";
			//menu.hideMenu();
		}
}
	function killMenu(menu, root) {
		var menu = document.getElementById(menu);
		var root = document.getElementById(root);
		menu.style.visibility = "hidden";
		for (var x=0;x<menu.childNodes.length;x++) {
			if (menu.childNodes[x].nodeName=="LI") {
				if (menu.childNodes[x].getElementsByTagName("UL").length>0) {
					menuItem = menu.childNodes[x].getElementsByTagName("UL").item(0);
					menuItem.style.visibility = "hidden";
				}
			}
		}
		while (menu.parentNode.parentNode!=root) {
			menu.parentNode.parentNode.style.visibility = "hidden";
			menu = menu.parentNode.parentNode;
		}
		stopTime();
	}
	function stopTime() {
		if (mytimer) {
		 	 clearInterval(mytimer);
			 mytimer = null;
			 timerOn = false;
		}
	} 

	window.onload = function() {
		if ((navigator.platform.indexOf('MacPPC')!=-1) && (navigator.userAgent.indexOf('MSIE')!=-1)) {
			//alert("Mac IE is here. shit!");
		} else {
			//alert("loaded");
			var root = document.getElementById("menuList");
			//alert("About to execute getmenus");
			getMenus(root, root);
		}
	}

function getMenus(elementItem, root) {
	var selectedItem;
	var menuStarter;
	var menuItem;
	//alert("in getmenus");
	//alert(elementItem.childNodes.length);
	for (var x=0;x<elementItem.childNodes.length;x++) {
		//alert(elementItem.childNodes[x].nodeName);
		if (elementItem.childNodes[x].nodeName=="LI") {
			//alert("Yes!");
			if (elementItem.childNodes[x].getElementsByTagName("UL").length>0) {
				//alert("Set up");
				menuStarter = elementItem.childNodes[x].getElementsByTagName("A").item(0);
				menuItem = elementItem.childNodes[x].getElementsByTagName("UL").item(0);
				getMenus(menuItem, root);
				initialiseMenu(menuItem, menuStarter, root);
			}
		}
	}
	//return true;
}

// bookmark
function addBookmark() {
      myurl =   location.href;
      mytitle = document.title;

	  msg = "Ihr Browser unterstützt diese Funktionalität nicht! Bitte nehmen Sie die Ferngas-Seite über das Browser-Menu in Ihre Bookmarks auf!";

	  if(navigator.appName == "Netscape") {
		  msg = "Nehmen Sie C+C PFeiffer über die Tastenkombination CTRL-D in Ihre Bookmarks auf!";
	  }

	  if ((navigator.platform=="MacPPC")&&(navigator.appName == "Netscape")) {
		  msg = "Nehmen Sie C+C PFeiffer über die Tastenkombination Command-D in Ihre Bookmarks auf!";
	  }

	  if ((navigator.userAgent).indexOf("Opera")!=-1) {
		  msg = "Nehmen Sie C+C PFeiffer über die Tastenkombination CTRL-T in Ihre Bookmarks auf!";
	  }

	  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4) && ((navigator.userAgent).indexOf("Opera")==-1)) {
		window.external.AddFavorite (myurl,mytitle);
      }
	  else {
	    alert(msg);
     }
}

function formatMonth(dateStr) {
	if (!dateStr)
		return;
	else {
		var monStr = dateStr.substr(3,2);
		if (monStr == '01') {
			monStr = 'J&auml;nner';
		} else if (monStr == '02') {
			monStr = 'Februar';
		} else if (monStr == '03') {
			monStr = 'M&auml;rz';
		} else if (monStr == '04') {
			monStr = 'April';
		} else if (monStr == '05') {
			monStr = 'Mai';
		} else if (monStr == '06') {
			monStr = 'Juni';
		} else if (monStr == '07') {
			monStr = 'Juli';
		} else if (monStr == '08') {
			monStr = 'August';
		} else if (monStr == '09') {
			monStr = 'September';
		} else if (monStr == '10') {
			monStr = 'Oktober';
		} else if (monStr == '11') {
			monStr = 'November';
		} else if (monStr == '12') {
			monStr = 'Dezember';
		}
		return monStr;
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_showHideLayers() { //v3.0
  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; }
}

function openPicture(url,winName,winParams)	{	//
	var theWindow = window.open(url,winName,winParams);
	if (theWindow)	{theWindow.focus();}
}

function changeHighlight(elementid) {
	//alert(document.getElementById(elementid).src.indexOf('img/navigation/startseite.gif'));
	if(document.getElementById(elementid).src.indexOf('img/navigation/startseite.gif')>-1) document.getElementById(elementid).src='img/navigation/startseite_hl.gif';
	if(document.getElementById(elementid).src.indexOf('img/navigation/leistungen.gif')>-1) document.getElementById(elementid).src='img/navigation/leistungen_hl.gif';
	if(document.getElementById(elementid).src.indexOf('img/navigation/newsntipps.gif')>-1) document.getElementById(elementid).src='img/navigation/newsntipps_hl.gif';
	if(document.getElementById(elementid).src.indexOf('img/navigation/servicecenter.gif')>-1) document.getElementById(elementid).src='img/navigation/servicecenter_hl.gif';
	if(document.getElementById(elementid).src.indexOf('img/navigation/unternehmen.gif')>-1) document.getElementById(elementid).src='img/navigation/unternehmen_hl.gif';
}

function resetHighlight() {
	document.getElementById('startseite').src='img/navigation/startseite.gif';
	document.getElementById('leistungen').src='img/navigation/leistungen.gif';
	document.getElementById('newsntipps').src='img/navigation/newsntipps.gif';
	document.getElementById('servicecenter').src='img/navigation/servicecenter.gif';
	document.getElementById('unternehmen').src='img/navigation/unternehmen.gif';
}