function skiftbillede(img_id,img_src) {
document.getElementById([img_id]).src=img_src;
}

function tilmeld() {
				var link = 'tilmeldworkshops_1.php';
				nytvindue = window.open(link,'noget','scrollbars=yes,width=700,height=400');
}
function engtilmeld() {
				var link = 'tilmeldworkshops_1.php';
				nytvindue = window.open(link,'noget','scrollbars=yes,width=715,height=400');
}
function tilmeld_2() {
				var link = 'tilmeldworkshops_2.php';
				nytvindue = window.open(link,'noget','scrollbars=yes,width=700,height=400');
}
function engtilmeld_2() {
				var link = 'tilmeldworkshops_2.php';
				nytvindue = window.open(link,'noget','scrollbars=yes,width=715,height=400');
}
function extratilmeld() {
				var link = 'extratilmeld.php';
				nytvindue = window.open(link,'noget','scrollbars=yes,width=700,height=400');
}
function engextratilmeld() {
				var link = 'extratilmeld.php';
				nytvindue = window.open(link,'noget','scrollbars=yes,width=715,height=400');
}
function billeder() {
				var link = 'billeder.php';
				nytvindue = window.open(link,'noget','scrollbars=yes,width=740,height=500');
}
$('.shop_antal_box').live('keyup',function(){
var gebyr = $("#gebyr").text();

var reverse = $("#reverse_antal").val();
if(!reverse) { var reverse = 0; }
if(isNaN(reverse)){ var reverse = 0; $("#reverse_antal").val('0'); }
var reversePris = $("#reverse").text();
var reverseIalt = reverse * reversePris;

var memoriesNoder = $("#memories_noder_antal").val();
if(!memoriesNoder) { var memoriesNoder = 0; }
if(isNaN(memoriesNoder)){ var memoriesNoder = 0; $("#memories_noder_antal").val('0'); }
var memoriesNoderPris = $("#memories_noder").text();
var memoriesNoderIalt = parseInt(memoriesNoder) * parseInt(memoriesNoderPris);

var memoriesCd = $("#memories_cd_antal").val();
if(!memoriesCd) { var memoriesCd = 0; }
if(isNaN(memoriesCd)){ var memoriesCd = 0; $("#memories_cd_antal").val('0'); }
var memoriesCdPris = $("#memories_cd").text();
var memoriesCdIalt = memoriesCd * memoriesCdPris;

var opvarmning = $("#opvarmning_antal").val();
if(!opvarmning) { var opvarmning = 0; }
if(isNaN(opvarmning)){ var opvarmning = 0; $("#opvarmning_antal").val('0'); }
var opvarmningPris = $("#opvarmning").text();
var opvarmningIalt = opvarmning * opvarmningPris;

var beats = $("#beats_antal").val();
if(!beats) { var beats = 0; }
if(isNaN(beats)){ var beats = 0; $("#beats_antal").val('0'); }
var beatsPris = $("#beats").text();
var beatsIalt = beats * beatsPris;

var knapper = $("#knapper_antal").val();
if(!knapper) { var knapper = 0; }
if(isNaN(knapper)){ var knapper = 0; $("#knapper_antal").val('0'); }
var knapperPris = $("#knapper").text();
var knapperIalt = knapper * knapperPris;

var ialt = reverseIalt + memoriesNoderIalt + memoriesCdIalt + opvarmningIalt + beatsIalt + knapperIalt;

var totalt = ialt + parseInt(gebyr);
$('#shop_ialt').text(totalt);
$("#vis_ialt").val(totalt);
});