var ModelsList = null ; 

function LoadModels()
{
    	ModelsList = createXmlHttpRequestObject()
        ModelsList.onreadystatechange = process_LoadModels;

    var make_id = document.getElementById("make_id").value;
    if (make_id>0)
    {
	   	 document.getElementById("logo").height=55;
	     document.getElementById("logo").width=55;
	     document.getElementById("logo").src ='images/logos/small/'+make_id+'.jpg';
	}
	else
    {
	   	 document.getElementById("logo").height=1;
	     document.getElementById("logo").width=1;
	     document.getElementById("logo").src ='images/pixel.gif';
	}

    if (make_id==-1)
    {
    	No_Models()
    	return;
    }
    var url = "/ajax_php/models_list_ajax.php?make_id="+make_id;
    ModelsList.open( "GET", url, true );
    ModelsList.send( null );
   	document.getElementById("models_list").innerHTML="<font color=red>Please wait...</font>";
}

function process_LoadModels() 
{
	if ( ModelsList.readyState != 4 )
		return  
   	document.getElementById("models_list").innerHTML = ModelsList.responseText;
    if(window.set_model!=null) set_model();
}

function No_Models()
{
   	document.getElementById("model_id").value = -1;
   	document.getElementById("models_list").innerHTML = "" ;
}