function faq(n){
  var obj=document.getElementById('faq'+n);
  obj.style.display=(obj.style.display=='none'?'block':'none');
}

function changepic(model,picsrc){
  var mainpic="images/models/"+model+"/1.jpg";
  var docmainpic=document.getElementById('mainpic').src;
  if(picsrc=="" || picsrc==undefined){
    document.getElementById('mainpic').src=mainpic;
  }else{
		document.getElementById('mainpic').src="images/models/"+model+"/"+picsrc+".jpg";
	}
}