var lastSelectProductCategory = null;

function Search() 
{
    var result = Control();
    var url = null;
    var brand = null;
    if (result == true) 
    {
       var fundamentalOfUrl = "http://liderbilisim.com.tr/asp/listgroup.asp?";
       lastSelectProductCategory = GetLastCategory();
       brand = GetBrand();
       if (brand != "") 
            url=fundamentalOfUrl+ "brand=" + brand + "&group=" + lastSelectProductCategory;
       else 
           url = fundamentalOfUrl + "group=" + lastSelectProductCategory;
       
       window.location = url;
    }
    else
    {
      return false;
    }
}

function Control() 
{
    var productCategory = document.getElementById('lbKirilim1').value;
    var subCategory = document.getElementById('lbKirilim2').value;
    if (productCategory != "") 
    {
        if (subCategory == "" || productCategory == null) {
            alert("En az bir alt kategori seçmelisiniz"); 
            return false;
            
        }
    }
    if (productCategory == "") 
    {
        alert("Kategori seçmelisiniz");
        return false;
    }
    
    return true;
}

function GetLastCategory()
{
    var lastSelectProductCategory = "";
    var subCategory = document.getElementById('lbKirilim2').value;
    var subProductCategory = document.getElementById('lbKirilim3').value;
    if (subProductCategory != "") 
        return lastSelectProductCategory = subProductCategory
    else if (subCategory != "")
        lastSelectProductCategory = subCategory;
        
    return lastSelectProductCategory;
}
function GetBrand() 
{
    return document.getElementById('lbMarka').value;
}