function compare_models()
{
        document.forms["cmp"].check.value=1;
        document.forms["cmp"].reset.value="";
        document.forms["cmp"].submit();
        return false;
}
function clear_list()
{
        document.forms["cmp"].reset.value=1;
        document.forms["cmp"].check.value="";
        document.forms["cmp"].submit();
        return false;
}

var cart_name="basket_vipsafe";
var cart_separator=";";

function get_cookie(cook_name)
{
        var cook_search=cook_name+"=";
        if(document.cookie.length>0)
        {
                offset=document.cookie.indexOf(cook_search);
                if(offset!=-1)
                {
                        offset+=cook_search.length;
                        end=document.cookie.indexOf(";",offset);
                        if(end==-1) end=document.cookie.length;
                        return unescape(document.cookie.substring(offset,end));
      }
   }
   return "";
}

function set_cookie(cook_name,cook_value,expire)
{
        document.cookie=cook_name+"="+escape(cook_value)+"; path=/"+((expire==null) ? "" : ("; expires=" + expire.toGMTString()));
}

function add_to_cart(cat_id,prod_name,price)
{
        var cart_contents=get_cookie(cart_name);
        var cart_array=(cart_contents!="") ? cart_contents.split(cart_separator) : new Array();
        var found=0;
        for(var i in cart_array)
        {
                if(cart_array[i]==cat_id)
                {
                        found=1;
                        break;
                }
        }
        if(!found)
        {
                cart_array.push(cat_id);
                set_cookie(cart_name,cart_array.join(cart_separator));
                alert(prod_name+" добавлен в корзину");

                var o=document.getElementById("price_num")
                var last_price=parseFloat(o.innerHTML);
                o.innerHTML=last_price+parseFloat(price);
        }
        else
        {
                alert("Этот товар уже есть в корзине");
        }
        return false;
}