<!--
//Create a boolean variable to check for a valid Internet Explorer instance.
var xmlhttp = false;
//Check if we are using IE.
try {
  //If the javascript version is greater than 5.
  xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  //If not, then use the older active x object.
  try {
    //If we are using IE.
    xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (E) {
  //Else we must be using a non-IE browser.
  xmlhttp = false;
  }
}

//If we are using a non-IE browser, create a javascript instance of the object.
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
  xmlhttp = new XMLHttpRequest();
}

function grab_models (vendor){
	document.getElementById('sel_year').innerHTML = '<select id="select_year" disabled="disabled"><option disabled="disabled" selected="selected">Выбрать</option></select>';
	document.getElementById('sel_size').innerHTML = '<select id="select_size" disabled="disabled"><option disabled="disabled" selected="selected">Выбрать типоразмер</option></select>';
	serverPage = "app_models.php?vendor="+vendor;
    var obj = document.getElementById('sel_model');
    xmlhttp.open("GET", serverPage);
    xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        obj.innerHTML = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
}
function grab_years (model){
	document.getElementById('sel_size').innerHTML = '<select id="select_size" disabled="true"><option disabled="true" selected="true">Выбрать типоразмер</option></select>';
    serverPage = "app_years.php?model="+model;
    var obj = document.getElementById('sel_year');
    xmlhttp.open("GET", serverPage);
    xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        obj.innerHTML = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
}
function grab_sizes (year){
	model = document.getElementById('select_model').value;
    serverPage = "app_sizes.php?model="+model+"&year="+year;
    var obj = document.getElementById('sel_size');
    xmlhttp.open("GET", serverPage);
    xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        obj.innerHTML = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
}
function grab_result_sizes (){
	width = document.getElementById('width').value;
	height = document.getElementById('height').value;
	diameter = document.getElementById('diameter').value;
    serverPage = "search_sizes.php?width="+width+"&height="+height+"&diameter="+diameter;
	var obj = document.getElementById('test');
    xmlhttp.open("GET", serverPage);
    xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        obj.innerHTML = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
}
function grab_result_auto (){
	size = document.getElementById('select_size').value;
    serverPage = "search_sizes.php?size="+size;
    var obj = document.getElementById('test');
    xmlhttp.open("GET", serverPage);
    xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        obj.innerHTML = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
}
//-->