var getElementsByClassName = function (className, tag, elm){

	if (document.getElementsByClassName) {

		getElementsByClassName = function (className, tag, elm) {

			elm = elm || document;

			var elements = elm.getElementsByClassName(className),

				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,

				returnElements = [],

				current;

			for(var i=0, il=elements.length; i<il; i+=1){

				current = elements[i];

				if(!nodeName || nodeName.test(current.nodeName)) {

					returnElements.push(current);

				}

			}

			return returnElements;

		};

	}

	else if (document.evaluate) {

		getElementsByClassName = function (className, tag, elm) {

			tag = tag || "*";

			elm = elm || document;

			var classes = className.split(" "),

				classesToCheck = "",

				xhtmlNamespace = "http://www.w3.org/1999/xhtml",

				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,

				returnElements = [],

				elements,

				node;

			for(var j=0, jl=classes.length; j<jl; j+=1){

				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";

			}

			try	{

				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);

			}

			catch (e) {

				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);

			}

			while ((node = elements.iterateNext())) {

				returnElements.push(node);

			}

			return returnElements;

		};

	}

	else {

		getElementsByClassName = function (className, tag, elm) {

			tag = tag || "*";

			elm = elm || document;

			var classes = className.split(" "),

				classesToCheck = [],

				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),

				current,

				returnElements = [],

				match;

			for(var k=0, kl=classes.length; k<kl; k+=1){

				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));

			}

			for(var l=0, ll=elements.length; l<ll; l+=1){

				current = elements[l];

				match = false;

				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){

					match = classesToCheck[m].test(current.className);

					if (!match) {

						break;

					}

				}

				if (match) {

					returnElements.push(current);

				}

			}

			return returnElements;

		};

	}

	return getElementsByClassName(className, tag, elm);

};




function visaLankar(nr, bild){

	if( nr != '0' ){
		var m = getElementsByClassName("lank-inner");
		var i = 0;
		for( i=0; i<m.length; i++ ){
			var tempEl = m[i];
			if( tempEl.id != 'lankar-'+nr )
				tempEl.style.display='none';
		}
	}
	
	document.getElementById('sortiment-bild').src = 'bilder/sortiment/' + bild + '.jpg';
	document.getElementById('sortiment-bild-pris').src = 'bilder/sortiment/priser/' + bild + '.jpg';
	
	if( nr != '0' ){
		if( document.getElementById('lankar-'+nr).style.display == 'block' )
			document.getElementById('lankar-'+nr).style.display = 'none';
		else{
			document.getElementById('lankar-'+nr).style.display = 'block';
		}
	}
	
}