/*
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
	
}

//bildspel - slideshow


function SlideShow(id,duration,count) {
	
	if(document.getElementById('pbs_slideshow').style.display != 'block') {
		
		new Effect.Appear(document.getElementById('pbs_slideshow'))
	}
	
	var divnr = document.getElementById('slidewrap').getElementsByTagName('div').length;
	var div = document.getElementById('slidewrap').getElementsByTagName('div');
	
	
	
	var browser = Browser() //for IE, problem with png transparency
	
	

		if(count == undefined) {
			var count = 0
			
			for(i=0; i<divnr; i++) {
				
				div[i].style.position = 'absolute';
				
				
					if(i == 0) {
						div[i].style.display = 'block';
					}
					else {
						div[i].style.display = 'none';
					}

			}
			
			
		}
		else if((divnr-1) == count) {
			if(browser != "IE") {
				new Effect.Fade((div)[count])
			}
			else{
				(div)[count].style.display = 'none'
			}
			
			var count = 0
		}
		else {
			if(browser != "IE") {
				new Effect.Fade((div)[count])
			}
			else{
				(div)[count].style.display = 'none'
			}
			var count = count + 1
		}
		
		
		if(browser != "IE") {
			new Effect.Appear((div)[count])
		}
		else{
			//(img)[count].style.display = 'block'
			new Effect.Appear((div)[count])
		}
	
	slideid = id
	slideduration = duration
	slidecount = count
	page = count + 1
	
	document.getElementById('slidenumber').innerHTML = count + 1
	
	var sdnr = document.getElementById('slidenavepages').getElementsByTagName('A').length;
	var sd = document.getElementById('slidenavepages').getElementsByTagName('A')
	
	for(i=0; i<sdnr; i++) {
		
		sd[i].className = 'slidepage_none'
		
	}

	document.getElementById('slidepage_' + page).className = 'slidepage_active'
	
	theslideshow = setTimeout(function () { SlideShow(id,duration,count) },duration)

}

function StopSlideShow() {
	
	clearTimeout(theslideshow)
	document.getElementById('slidenavstop').style.display = 'none'
	document.getElementById('slidenavstart').style.display = 'block'
	//document.getElementById('slidenavleft').style.display = 'block'
	//document.getElementById('slidenavright').style.display = 'block'
	
}

function StartSlideShow() {
	
	document.getElementById('slidenavstop').style.display = 'block'
	document.getElementById('slidenavstart').style.display = 'none'
	//document.getElementById('slidenavleft').style.display = 'none'
	//document.getElementById('slidenavright').style.display = 'none'
	SlideShow(slideid,slideduration,slidecount)
	
}

function PausSlideShow() {
	
	
}

function SlideGoTo(nr){
	
	//alert(nr)
	
	document.getElementById('slidenavstop').style.display = 'none'
	document.getElementById('slidenavstart').style.display = 'block'
	
	var sdnr = document.getElementById('slidenavepages').getElementsByTagName('A').length;
	var sd = document.getElementById('slidenavepages').getElementsByTagName('A')
	
	for(i=0; i<sdnr; i++) {
		
		sd[i].className = 'slidepage_none'
		
		if(i == (nr - 1)){
			sd[i].className = 'slidepage_active'
		}
		
	}
	
	clearTimeout(theslideshow)
	
	var divnr = document.getElementById('slidewrap').getElementsByTagName('div').length;
	var div = document.getElementById('slidewrap').getElementsByTagName('div');
	
	var browser = Browser() //for IE, problem with png transparency
	
	//alert(count)
	
	for(i=0; i<divnr; i++) {
		
	
			div[i].style.display = 'none';
			
			if(i == (nr - 1)){
				div[i].style.display = 'block';
			}
				
	}
	
	// slideid = nr
	// slideduration = duration
	// slidecount = count
	// page = count + 1
	
	//document.getElementById('slidenumber').innerHTML = count + 1
}

function SlideShowNext() {
	
	id = slideid
	count = slidecount
	next = count + 1
	
	var divnr = document.getElementById('slidewrap').getElementsByTagName('div').length;
	var div = document.getElementById('slidewrap').getElementsByTagName('div');
	
	var browser = Browser() //for IE, problem with png transparency
	
	//alert(count)
	
	div[count].style.display = 'none';
	
	if(divnr <= next) {
		div[count].style.display = 'none';
		new Effect.Appear((div)[0])
		count = 0
	}
	else {
		div[count].style.display = 'none';
		new Effect.Appear((div)[next])
		count = count + 1
	}

	slidecount = count
	slideid = id
	page = count + 1
	
	var sdnr = document.getElementById('slidenavepages').getElementsByTagName('A').length;
	var sd = document.getElementById('slidenavepages').getElementsByTagName('A')
	
	for(i=0; i<sdnr; i++) {
		
		sd[i].className = 'slidepage_none'
		
	}
	
	document.getElementById('slidenumber').innerHTML = count + 1
	document.getElementById('slidepage_' + page).className = 'slidepage_active'
}


function SlideShowPrev() {
	
	id = slideid
	count = slidecount
	next = count - 1
	
	var divnr = document.getElementById('slidewrap').getElementsByTagName('div').length;
	var div = document.getElementById('slidewrap').getElementsByTagName('div');
	
	var browser = Browser() //for IE, problem with png transparency
	
	//alert(count)
	
	div[count].style.display = 'none';
	
	if(0 > next) {
		div[0].style.display = 'none';
		new Effect.Appear((div)[divnr-1])
		count = divnr-1
	}
	else {
		div[count].style.display = 'none';
		new Effect.Appear((div)[next])
		count = count - 1
	}

	slidecount = count
	slideid = id
	page = count + 1
	
	var sdnr = document.getElementById('slidenavepages').getElementsByTagName('A').length;
	var sd = document.getElementById('slidenavepages').getElementsByTagName('A')
	
	for(i=0; i<sdnr; i++) {
		
		sd[i].className = 'slidepage_none'
		
	}
	
	document.getElementById('slidenumber').innerHTML = count + 1
	document.getElementById('slidepage_' + page).className = 'slidepage_active'
	

}


//end slideshow