/* ---------------------------- */
/* XMLHTTPRequest Enable 		*/
/* ---------------------------- */
function createObjectTags() {
	var request_type;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer"){
	request_type = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		request_type = new XMLHttpRequest();
	}
		return request_type;
}

var http = createObjectTags();

/* -------------------------- */
/* SEARCH					 */
/* -------------------------- */
function getAvailability(product_id, option_1, option_2) {
  nocache = Math.random();
  f = http.open('get', '/options/availability/' + product_id + '/' + option_1 + '/' + option_2);
  http.onreadystatechange = availabilityReply;
  http.send(null);
}

function availabilityReply() {
  if(http.readyState == 4){
  	var response = http.responseText;
    writeResponse(response);
  }
}

function writeResponse(response) {
    e = document.getElementById('availability');

    if(response!=""){
  		e.innerHTML=response;
  	} else {
  	}
}