var visas = "ruta1"; var sidovisas = "liten1"; function changeContent(thisobj, sidoobj) { getObj(visas).style.visibility = "hidden"; getObj(thisobj).style.visibility = "visible"; visas = thisobj; getObj(sidovisas).style.visibility = "hidden"; getObj(sidoobj).style.visibility = "visible"; sidovisas = sidoobj; } function getObj(elementID) { if (typeof elementID == "string") { return document.getElementById(elementID); } else { return elementID; } } function changeImage(bildid,nybild) { bildid.src=nybild; } function show(elementID) { document.getElementById(elementID).style.visibility='visible'; } function hide(elementID) { document.getElementById(elementID).style.visibility='hidden'; }