// browserdetection
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();

// generell functions
function gE(id) {
	return document.getElementById(id);
}


// handling dom
function removeElements(id)
{
	var elem=gE(id);
	try
	{
		elem.innerHTML='';
		for (cn in elem.childNodes)
		{
			elem.removeChild(cn);
		}
	}
	catch (e) {}
}

function createElement(parentElement, newElem)
{
	var newNode=document.createElement(newElem);
	parentElement.appendChild(newNode);
	return newNode;
}



// produktprogramm auswählen
function onSelectionChanged(selList,hdVal)
{
	var oSelList=gE(selList);
	gE(hdVal).value=oSelList.options[oSelList.selectedIndex].value;
  if (arrLinks[gE(hdVal).value]) document.location = arrLinks[gE(hdVal).value];
}

function initMakeModel(makeListId, modelListId, makeValId, modelValId)
{
	chooseMake(true, makeListId, modelListId, makeValId, false);
	var oModelSelect=gE(modelListId);
	var oModelValue=gE(modelValId).value;
	for (var i=0;i<oModelSelect.options.length;i++)
	{
		if (oModelSelect.options[i].value==oModelValue)
		{
			oModelSelect.selectedIndex=i;
			break;
		}
	}
}
function chooseMake(headContained, makeListId, modelListId, makeValId, updateModel)
{
	var oMakeSelect=gE(makeListId);
	var oModelSelect=gE(modelListId);
	var oMakeValue=gE(makeValId);
	oModelSelect.selectedIndex=0;
	oModelSelect.options.length=1;
  oMakeValue.value=oMakeSelect.options[oMakeSelect.selectedIndex].value;
	var offsetForAll=(headContained ? 1 : 0);
	if (oMakeSelect.selectedIndex>=offsetForAll)
	{
    if (!arrModels[oMakeSelect.selectedIndex+1-offsetForAll] && arrLinks[oMakeValue.value])
    {
      document.location = arrLinks[oMakeValue.value];
      return;
    }
		var modList=(arrModels[oMakeSelect.selectedIndex+1-offsetForAll]).split(';');
		oModelSelect.options.length=modList.length+1;
		for (var i=0;i<modList.length;i++)
		{
			oModelSelect.options[i+1].value=modList[i].split(',')[0];
			oModelSelect.options[i+1].text=modList[i].split(',')[1];
		}
	}	
	if (oModelSelect.options.length==2) oModelSelect.selectedIndex=1;
	oModelSelect.disabled=((headContained && oMakeSelect.selectedIndex==0) ? 'disabled' : '');
	if (updateModel) oModelSelect.onchange();
}