function OpenSearch() {
	selectYears();
}

function selectYears(modelYear) {
	//do request
    var request = getRequest();
    request.open("get", "/SearchToolPull.aspx?data=divisions", false);
    request.send(null);

    //populate division dropdown and clear model dropdown
    fillSelect(document.getElementById("division"), request.responseText);
    clearSelect(document.getElementById("model"));
	selectDivisions();

}

function selectDivisions() {

    //do request
    var request = getRequest();
    request.open("get", "/SearchToolPull.aspx?data=models&divisionId=1", false);
    request.send(null);

    //sort models
    var models = request.responseText.split(";;");
    var modelsArray = [];
    for (var i = 0; i < models.length; i++) {
   		modelsArray[i] = models[i];
	}
	modelsArray.sort();

    //populate model dropdown
    fillModelsSelect(document.getElementById("model"), modelsArray);

}

function selectYear(modelYear) {
	//do request
    var request = getRequest();
    request.open("get", "/SearchToolPull.aspx?data=divisions", false);
    request.send(null);

    //populate division dropdown and clear model dropdown
    fillSelect(document.getElementById("division"), request.responseText);
    clearSelect(document.getElementById("model"));

}

function selectDivision(divisionId) {

    //do request
    var request = getRequest();
    request.open("get", "/SearchToolPull.aspx?data=models&divisionId=" + divisionId, false);
    request.send(null);

    //sort models
    var models = request.responseText.split(";;");
    var modelsArray = [];
    for (var i = 0; i < models.length; i++) {
   		modelsArray[i] = models[i];
	}
	modelsArray.sort();

    //populate model dropdown
    fillModelsSelect(document.getElementById("model"), modelsArray);

}

function clearTable(tableElm) {
	var rows = tableElm.rows;
	for( var i = rows.length - 1; i >= 0; --i )
  		tableElm.deleteRow( i );
}

function clearSelect(selectElm) {
    if (selectElm.options != null) {
        selectElm.options.length = 0;
    }
    selectElm.disabled = true;
}

function fillSelect(selectElm, responseText) {
    selectElm.options.length = 0;
    //selectElm.options[0] = new Option("", "0", true, true);
    var response = responseText.split(";;");
    for (var i = 0; i < response.length; i++) {
        var style = response[i].split("~~");
       	selectElm.options[selectElm.options.length] = new Option(style[1], style[0], false, false);
    }
    selectElm.disabled = false;
}

function fillModelsSelect(selectElm, modelsArray) {
    selectElm.options.length = 0;
    //selectElm.options[0] = new Option("", "0", true, true);
    for (var i = 0; i < modelsArray.length; i++) {
        var style = modelsArray[i].split("~~");
       	selectElm.options[selectElm.options.length] = new Option(style[0], style[1]