function GrabVehicleModels(make_name,model_name) {
	
	var ajaxRequest;  // The variable that makes Ajax possible!
	var ajaxDisplay = document.getElementById("models");
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var queryString = "?make_name="+make_name+"&model_name="+model_name;
	ajaxRequest.open("GET", "products_grab_models.php" + queryString, true);
	ajaxRequest.send(null);

}


function SearchTiresByVehicle() {
	var make_id = document.getElementById("make_id").value;
	var model_id = document.getElementById("model_id").value;
	var err = "";
	
	if (make_id=="")
		err += "Please Select Vehicle Make\n";
		
	if (model_id=="")
		err += "Please Select Vehicle Model\n";
	
	if (err.length>0)
	{
		alert(err);
		return false;
	} else
	{
		return true;
	}
}

function GrabVehicleYear(make, model, yr)
{
		var ajaxRequest;  // The variable that makes Ajax possible!
	var ajaxDisplay = document.getElementById("years");
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var queryString = "?make_name="+make+"&model_name="+model+"&yr="+yr;
	ajaxRequest.open("GET", "products_grab_years.php" + queryString, true);
	ajaxRequest.send(null);
}

function NarrowSearch(s)
{
	if (s!='')
		document.narrow_tire_size.submit();
}