var xhr = null; 
var ie    = document.all;
var nn6   = document.getElementById && !document.all;

function getXhr()
{
	if(window.XMLHttpRequest)
	   xhr = new XMLHttpRequest(); 
	else if(window.ActiveXObject)
	{
	   try	{
				xhr = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				xhr = new ActiveXObject("Microsoft.XMLHTTP");
			}
	}
	else 
	{
	   alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
	   xhr = false; 
	} 
}

function go1(idtype,mar,mod)
{
	getXhr();
	xhr.onreadystatechange = function()
	{
		if(xhr.readyState == 4 && xhr.status == 200)
		{			
			if (idtype == -1 || idtype == -2 || idtype == -3 || idtype == -4 || idtype == -5 || idtype == -7 || idtype == 42 || idtype == 43 || idtype == 44 || idtype == 45 || idtype == 46 || idtype == 47)
			{
				leselect1 = '<select name=\'marqueid\' class=\'lateral\' disabled><option value=\"\">Choisissez</option></select>';
				document.getElementById('marque').innerHTML = leselect1;
				document.getElementById('marqueid_select').value = leselect1;
				leselect2 = '<select name=\'modeleid\' class=\'lateral\' disabled><option value=\"\">Choisissez</option></select>';
				document.getElementById('modele').innerHTML = leselect2;
				document.getElementById('modeleid_select').value = leselect2;
			}
			else
			{
				leselect = xhr.responseText;
				document.getElementById('marque').innerHTML = leselect;				
				document.getElementById('marqueid_select').value = leselect;
				leselect2 = '<select name=\'modele\' class=\'lateral\' disabled><option value=\"\">Choisissez</option></select>';
				document.getElementById('modele').innerHTML = leselect2;
				document.getElementById('modeleid_select').value = leselect2;				
			}
						
			
			if (mar) go2(mar,mod);
		}
	}
	xhr.open("POST","/ajax/ajax_marque.php?nocache=" + Math.random(),true);
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');

    if (!idtype)
    {
      sel1 = document.getElementById('typeid');
      idtype = sel1.options[sel1.selectedIndex].value;
    }
    else document.getElementById('typeid').value = idtype;

    leselect1 = document.getElementById('typeid_select').value;
	
    /* A SUPP
	if (ie)
    {
      leselect1 = leselect1.replace(" selected>",">");
      leselect1 = leselect1.replace("value="+idtype+">","value="+idtype+" selectedAA1>");
      leselect1 = leselect1.replace("value=\""+idtype+"\"","value=\""+idtype+"\" selected=\"selectedAA2\"");
    }
    else
    {
      leselect1 = leselect1.replace("selected=\"selected\"","");
      leselect1 = leselect1.replace("value=\""+idtype+"\"","value=\""+idtype+"\" selected=\"selectedAA3\"");
    }
    document.getElementById('typeid_select').value = leselect1;*/

	xhr.send("idType="+idtype);
}
			
function go2(idmarque,mod)
{		
	getXhr();
	xhr.onreadystatechange = function()
	{
		if(xhr.readyState == 4 && xhr.status == 200)
		{
			leselect = xhr.responseText;
			document.getElementById('modele').innerHTML = leselect;
			document.getElementById('modeleid_select').value = leselect;
            if (mod) go3(mod);
		}
	}
	
	if (document.getElementById('typeid').value == 18 || document.getElementById('typeid').value == 34 || document.getElementById('typeid').value == 35 || document.getElementById('typeid').value == 36 || document.getElementById('typeid').value == 37 || document.getElementById('typeid').value == 38 || document.getElementById('typeid').value == 39 || document.getElementById('typeid').value == 40 || document.getElementById('typeid').value == 6)
	{
		xhr.open("POST","/ajax/ajax_modele_disable.php",true);
	}
	else
	{
		xhr.open("POST","/ajax/ajax_modele.php",true);
	}
	
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	
    if (!idmarque)
    {    	
		sel2 = document.getElementById('marqueid');		
		idmarque = sel2.options[sel2.selectedIndex].value;
    }
    else 
	{		
		document.getElementById('marqueid').value = idmarque;
	}

    leselect2 = document.getElementById('marqueid_select').value;
    if (ie)
    {
	  leselect2 = leselect2.replace(" selected>",">");
      leselect2 = leselect2.replace("value="+idmarque+">","value="+idmarque+" selected>");
      leselect2 = leselect2.replace("value=\""+idmarque+"\"","value=\""+idmarque+"\" selected=\"selected\"");
    }
    else
    {
      leselect2 = leselect2.replace("selected=\"selected\"","");
      leselect2 = leselect2.replace("value=\""+idmarque+"\"","value=\""+idmarque+"\" selected=\"selected\"");
    }
    document.getElementById('marqueid_select').value = leselect2;

	xhr.send("idMarque="+idmarque);
}

function go3(idmodele)
{
    if (!idmodele)
    {
      sel3 = document.getElementById('modeleid');
      idmodele = sel3.options[sel3.selectedIndex].value;
    }
    else document.getElementById('modeleid').value = idmodele;

    leselect3 = document.getElementById('modeleid_select').value;
    if (ie)
    {
      leselect3 = leselect3.replace(" selected>",">");
      leselect3 = leselect3.replace("value="+idmodele+">","value="+idmodele+" selected>");
      leselect3 = leselect3.replace("value=\""+idmodele+"\"","value=\""+idmodele+"\" selected=\"selected\"");
    }
    else
    {
      leselect3 = leselect3.replace("selected=\"selected\"","");
      leselect3 = leselect3.replace("value=\""+idmodele+"\"","value=\""+idmodele+"\" selected=\"selected\"");
    }
    document.getElementById('modeleid_select').value = leselect3;
}

function go6(typ)
{
	if (17 <= typ)
	{
		leselect7 = document.getElementById('energie').innerHTML;
		leselect7 = leselect7.replace(">", " disabled>");
		leselect7 = leselect7.replace("selected", " ");
		document.getElementById('energie').innerHTML = leselect7;
	}
	else
	{
		leselect8 = document.getElementById('energie').innerHTML;
		leselect8 = leselect8.replace("disabled", " ");
		document.getElementById('energie').innerHTML = leselect8;
	}
}

function init_ajax_form (cat,typ,mar,mod)
{
    if (!cat && !typ && !mar && !mod)
    {
	  document.getElementById('marqueid_select').value = document.getElementById('marque').innerHTML;
      document.getElementById('modeleid_select').value = document.getElementById('modele').innerHTML;
    }
    else 
	{		
		go1 (typ,mar,mod);
	}
}