// JavaScript Document
function check_form_model(form)
{

    if(form.bouwjaar.value == "0"){
	      alert( "We do chiptuning for cars from 2002 and younger." );
        form.bouwjaar.focus();
        return false;

	  }

return true;
}

function address_toggle(button, address)
{
    var button_plus_src = "http://www.ziptuning.nl/images/plus.gif";
    var button_minus_src = "http://www.ziptuning.nl/images/minus.gif";
    //alert(document.getElementById(address).className);
    
    
    if(document.getElementById(address).style.display=="none")
		{
		  document.getElementById("add_utrecht").style.display="none";
		  document.getElementById("b_utrecht").setAttribute("class", "");
		  
      document.getElementById("add_groningen").style.display="none";
      document.getElementById("b_groningen").setAttribute("class", "");
      
      document.getElementById("add_belgium").style.display="none";
      document.getElementById("b_belgium").setAttribute("class", "");
      
      document.getElementById("add_paris").style.display="none";
      document.getElementById("b_paris").setAttribute("class", "");
      
      document.getElementById("add_sao_paulo").style.display="none";
      document.getElementById("b_sao_paulo").setAttribute("class", "");
      
      document.getElementById("add_usa").style.display="none";
      document.getElementById("b_usa").setAttribute("class", "");
      
      document.getElementById("add_germany").style.display="none";
      document.getElementById("b_germany").setAttribute("class", "");
    
		  document.getElementById(address).style.display="block";
			document.getElementById(button).setAttribute("class", "active");
		}
    else
		{
		 	document.getElementById(address).style.display="none";
			document.getElementById(button).setAttribute("class", "");
		}
}

/*
function address_toggle(button, address)
{
    var button_plus_src = "http://www.ziptuning.nl/images/plus.gif";
    var button_minus_src = "http://www.ziptuning.nl/images/minus.gif";
    
    if(document.getElementById(address).style.display=="none")
		{
		  document.getElementById(address).style.display="block";
			document[button].src=button_minus_src;
		}
    else
		{
		 	document.getElementById(address).style.display="none";
			document[button].src=button_plus_src;
		}
}
*/