function callAjaxPrices(){
	var makeVal = document.basicSearchForm.cmbmake[document.basicSearchForm.cmbmake.selectedIndex].value;
	//alert(makeVal);
	var modelVal = document.basicSearchForm.cmbmodel[document.basicSearchForm.cmbmodel.selectedIndex].value;
	//alert(modelVal);
	
	if(window.XMLHttpRequest){// For Mozilla, Safari
		http_request = new XMLHttpRequest();
	}else if(window.ActiveXObject){// For IE
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	
	if(!http_request){
		alert('Giving up :( Cannot create an XMLHTTP instance');
		return false;
	}
	if(http_request){
		var url = "0km/newCarsAjaxPrices.htm?make="+makeVal+"&model="+modelVal;
		http_request.onreadystatechange = function(){ processMakeModel(http_request); };
		http_request.open("POST",url,true);
		http_request.send(null);
	}
	function processMakeModel(http_request){
		if(http_request.readyState == 4){
			document.getElementById("priceDiv").innerHTML = http_request.responseText;
		}
	}
}