var showing_div_id = null;
var permanent_div_id = null;
var permanent_button_id = null;

function remove_title(area_id) {
 		document.getElementById(area_id).title = "";
	}



function show_thema_div(div_id,area_id) {
		document.getElementById("thema_hand").style.display = "none";
    if (showing_div_id != null) {
 					document.getElementById(showing_div_id).style.display = "none";
    }
		showing_div_id = div_id;
    if (permanent_div_id != null) {
 					document.getElementById(permanent_div_id).style.display = "none";
    }
 		document.getElementById(showing_div_id).style.display = "block";
 		document.getElementById(area_id).title = "Klicken, um Auswahl zu selektieren";
}

function select_thema_div(div_id,button_id) {
	      if(permanent_button_id != null) {
 				document.getElementById(permanent_button_id).setAttribute("class","themabutton");
 				}
 				permanent_div_id=div_id;
 				permanent_button_id=button_id;
 				document.getElementById(button_id).setAttribute("class","themabuttonsel");
}
			
function disable_thema_div() {
	      document.getElementById(showing_div_id).style.display = "none";
	      if (permanent_div_id != null) {
 					document.getElementById(permanent_div_id).style.display = "block";
	      } else {
					document.getElementById("thema_hand").style.display = "block";
	      }
}

	function ensure_extension(v, ext) {
		var dot_index = v.lastIndexOf(".");
		var ret = v.substring(0,dot_index) + "." + ext;
		return ret;
	}

// From http://www.quirksmode.org/js/detect.html
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: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			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.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();