var xmlhttp = false;


try 
{
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} 
catch (e) 
{
	try {
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (E) {
		xmlhttp = false;
	}
}

if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
	xmlhttp = new XMLHttpRequest();
}

function refreshSelects (classes, codes)
{
	if (xmlhttp) 
	{
		if (xmlhttp.readyState >= 1 && xmlhttp.readyState <= 3) 
		{
			xmlhttp.abort();
		}
		var descript, url = 'webshop_get_accus.asp?type=' + classes + '&codes=' + codes + '&l=';
	//alert(url);
		xmlhttp.open("GET", url, true);	
		
		xmlhttp.onreadystatechange = function () 
		{
            if(xmlhttp.readyState == 4)
			{
				var optctr, selCode, sel, result;
				result = new Array();
				response = xmlhttp.responseText;
										
			//	alert(response);
				eval(response);				
			
				switch(classes)
				{
					case 'appl':
						sel = selAppl;	descript = '- Soort voertuig -'; break;
						
					case 'brand':
						sel = selBrand;	descript = '- Selecteer merk -'; break;
					
					case 'model':
						sel = selModel;	descript = '- Selecteer model -'; break;
					
					case 'type':
						sel = selType;	descript = '- Selecteer type -'; break;

					case 'date':
						sel = selDate;	descript = '- Vanaf bouwjaar -'; break;
						
					case 'conversion':
						sel = selConvCode;	descript = '- Selecteer nummer -'; break;
				}	
						
				optctr = 0;
				sel.options.length = 0;
				sel.options[optctr] =  new Option(descript, "", false);
				for(var code in result)
				{
					optctr++;
					sel.options[optctr] =  new Option(""+code+"", result[code], false, false);
				}
				
				// valt er iets te kiezen ?
				if (optctr > 0) 					
					sel.disabled = false;			

				progressdone = true;
				
				sortModels();				
            }
		}
		xmlhttp.send(null);
	}
}

function sortModels()
{
	var cl = document.getElementById('veh_model');
	if (cl && cl.length > 0)
	{
		var clTexts = new Array(), i;

		for(i = 0; i < cl.length; i++)
		{
			clTexts[i] = cl.options[i].text.toUpperCase() + "," +
			cl.options[i].text + "," +
			cl.options[i].value + "," +
			cl.options[i].selected;
		}

		clTexts.sort();

		for(i = 0; i < cl.length; i++)
		{
			var parts = clTexts[i].split(',');

			cl.options[i].text = parts[1];
			cl.options[i].value = parts[2];
			if(parts[3] == "true")
				cl.options[i].selected = true;
			else
			   cl.options[i].selected = false;
		}
	}
}