/*
By Pål Bergström, www.palbergstrom.com
For MiL Institute
Genral scripts
*/

document.getElementsByClassName = function(cl) {
var retnode = [];
var myclass = new RegExp('\\b'+cl+'\\b');
var elem = this.getElementsByTagName('*');
for (var i = 0; i < elem.length; i++) {
var classes = elem[i].className;
if (myclass.test(classes)) retnode.push(elem[i]);
}
return retnode;
};

function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, op) {
    //shift opacity
  
        var object = document.getElementById(id).style;
   		object.opacity = op;
    		object.MozOpacity = op;
   	 	object.KhtmlOpacity = op;
    		object.filter = "alpha(opacity="+op+")";
    
} 

function BrowserFix() {
	
		
	
	//BrowserFix
	if(navigator.userAgent.search("Safari") != -1) {
			document.write('<link href="css/safari.css" rel="stylesheet" type="text/css" media="all" />')
	}
	if(navigator.userAgent.search("MSIE") != -1) {
			document.write('<link href="css/ie.css" rel="stylesheet" type="text/css" media="all" />')
	}
	
	if(document.all) {
		w = document.documentElement.clientWidth
	}
	else {
		w = window.innerWidth
	}
	
	if(w <= 900) {
		
			document.write('<link href="css/w900.css" rel="stylesheet" type="text/css" media="all" />')
		
	}
	
}


function Preview(br) {
	if(br != "") {
		document.getElementById('preview').innerHTML = '<img alt="" src="images/arkivbilder/';
	}
	else {
		document.getElementById('preview').innerHTML = ""
	}
	
}

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"
		},
		{
			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 Browser() {
	
	var browser = "Unknown"
	
	if(navigator.userAgent.search("Safari") != -1) {
		var browser = "Safari"
	}
	if(navigator.userAgent.search("MSIE") != -1) {
		var browser = "IE"
	}
	if(navigator.userAgent.search("Firefox") != -1) {
		var browser = "Firefox"
	}
	if(navigator.userAgent.search("Camino") != -1) {
		var browser = "Camino"
	}
	if(navigator.userAgent.search("Opera") != -1) {
		var browser = "Opera"
	}
	if(navigator.userAgent.search("iCab") != -1) {
		var browser = "iCab"
	}
	if(navigator.userAgent.search("KDE") != -1) {
		var browser = "KDE"
	}
	
	return browser
	
}

//end slideshow

function xDocSize()
{
  var e = document.body || document.documentElement;
  esw=0, eow=0, esh=0, eoh=0;
  if (e) {
    esw = e.scrollWidth;
    eow = e.offsetWidth;
    esh = e.scrollHeight;
    eoh = e.offsetHeight;
  }
	
}



function PBSShowImageClose(){
	document.getElementById('bkgfade').style.display='none'
	document.getElementById('pbsshowimage').style.display='none'
}



function PBSShowImage(img){
	

	if(document.getElementById('pbsshowimage')) {
		var bodyRef = document.getElementsByTagName("body").item(0);
	  	var olddiv = document.getElementById('pbsshowimage');
	  	bodyRef.removeChild(olddiv);
	}
	
	if(document.getElementById('bkgfade') == null) {
			var bkg = document.createElement("div");
			bkg.id = 'bkgfade'
			var bodyRef = document.getElementsByTagName("body").item(0);
			bodyRef.appendChild(bkg);	
	}
		
		
		
		imgpath = "images/" + img
		
		//create image
		theimg = document.createElement("img");
		theimg.id = 'pbsshowtheimage'
		theimg.src = imgpath
				
		//create div wrap
		imgwrap = document.createElement("div");
		imgwrap.id = 'pbsshowimage'
		imgwrap.style.opacity = '0.0'

		
		//create link around image
		clink = document.createElement("a");
		clink.href = "javascript:PBSShowImageClose()"
		clink.id = "pbsshowimageclose"
		clink.style.display = 'block'
		
		//text for close
		closetext = document.createTextNode("Stäng")
		closewrap = document.createElement("div");
		closewrap.id = 'pbsimageclosewrap'
		closewrap.appendChild(closetext)
		
		//create faded background
		bodyRef = document.getElementsByTagName("body").item(0);
		document.getElementById('bkgfade').style.display = 'block'
		
		//add elements to page
		clink.appendChild(theimg)
		//imgwrap.appendChild(closewrap)
		imgwrap.appendChild(clink)
		bodyRef.appendChild(imgwrap);
		
		if(theimg.complete) {
			PBSAdjustPosition()
		}else{
			PBSImgLoadTest()
		}
		
		
		
		
}

function PBSImgLoadTest(){
		
	if(theimg.complete) {
		if(imgload){
			clearTimeout(imgload)
		}
		PBSAdjustPosition()
	}else{
		imgload = setTimeout("PBSImgLoadTest()",0)
	}
}

function PBSAdjustPosition(){
	
	imgwraph = document.getElementById('pbsshowtheimage').height
	imgwrapw = document.getElementById('pbsshowtheimage').width


		//top
		yScroll = document.body.scrollTop || document.documentElement.scrollTop

		xDocSize()

			//set height
			if(imgwraph > (eoh + 20)){
				imgwrap.style.top = (yScroll + 20) + 'px'
			}else{
				//if window is higher
				var h = (eoh - (imgwraph + 20))/2
				imgwrap.style.top = (yScroll + h) + 'px'
			}
			
		imgwrap.style.left = "-" + ((imgwrapw/2)+10) + "px"
		
	PBSShowImageAppear()
}


function PBSShowImageAppear(){
	
	
	document.getElementById('pbsshowimage').style.opacity = parseFloat(document.getElementById('pbsshowimage').style.opacity) + parseFloat(0.1)
			
		appear = setTimeout(function () { PBSShowImageAppear() },10)
		
		if(document.getElementById('pbsshowimage').style.opacity == 1.0){
			clearTimeout(appear)
		}
		
}