var min_width=0;
var max_width=0;
var min_drop=0;
var max_drop=0;
var price=0;
var discount=0;
var delivery = 0;

// disable sau enable link pe butonul Add to Basket - radul

function addTo(){
  if(VerifyVenetianMMForm(document.form_calcvenetianmm))
    document.forms[0].submit();
  }
  
  
/*function ControlAddBasket(){ 
    var button = document.getElementById("add_to_basket");
  if(document.form_calcvenetianmm.custom_drop.value != '' && document.form_calcvenetianmm.custom_width.value != '')
    button.onclick = function(){
        button.onclick = function(){};
      };
      
  if( document.form_calcvenetianmm.custom_drop.value == '' ||  document.form_calcvenetianmm.custom_width.value == '')
    button.onclick = function(){
      VerifyVenetianMMForm(document.form_calcvenetianmm);   
      }
  
  return false;
}*/

function CheckReferrer() {
  var ref = document.referrer;
  if(ref != "http://www.webwoodenblinds.co.uk/venetian-next-day.html" && ref != "http://www.webwoodenblinds.co.uk/venetian-next-day-page1.html")
    document.form_calcvenetianmm.nextday.selectedIndex = 1; // select default "Standard, 7 days" when not coming from above links
  else
    document.form_calcvenetianmm.nextday.selectedIndex = 0; // select nextday
//    document.form_calcvenetianmm.nextday.selectedIndex = 1; // for bank holiday
}

// calculates the minimum price for current product
function getMinimumPrice(form_calc)
{
  var discount=venetianmm_arr[0][6] / 100;
  var min_price=venetianmm_arr[0][7][3][0];
  
  for(i=0; i<venetianmm_arr.length; i++)
  { 
      var slat_arr=venetianmm_arr[i][7];
      for(j=0; j<slat_arr[0].length; j++)
      { 
        var cur_price=slat_arr[3][j]*(1-discount);
        if (min_price>cur_price)
        {
          min_price=cur_price;
        }
      }
    
  }
  min_price=formatDecimal(min_price,true,2);
  document.getElementById('minprice').innerHTML = min_price;
}

function GetSlatValue(form){
  var slat_value;
  for (i=0;i<form.slat.length;i++) {
    if (form.slat[i].checked)
      slat_value = form.slat[i].value;
  }
  return slat_value;
}

function getParams()
{
  var idx = document.URL.indexOf('?');
  var params = new Array();
  if (idx != -1)
  {
    var pairs = document.URL.substring(idx+1, document.URL.length).split('&');
    for (var i=0; i<pairs.length; i++)
    {
      nameVal = pairs[i].split('=');
      params[nameVal[0]] = nameVal[1];
    }
  }
  return params;
}

function SetOtherParams()
{
    params = getParams();
    if (params["lift"] && params["tilt"] && params["brakets"] && params["recess"])
    {
        document.form_calcvenetianmm.lift_control.value = params["lift"];
        document.form_calcvenetianmm.tilt_control.value = params["tilt"];
        document.form_calcvenetianmm.brackets.value = params["brakets"];
        document.form_calcvenetianmm.recess.value = params["recess"];
        selectBrackets(document.form_calcvenetianmm.brackets.value);
    }

  /* TAKE SLAT FROM QQ AND SELECT IT AS DEFAULT - RaduL*/
  price = 0;
  slat = params["slat"];

  if(slat > 0) {
    var slatObj = document.form_calcvenetianmm.slat;
    for(k = 0; k < slatObj.length; k++) {
      if(slatObj[k].value == slat )
        slatObj[k].checked = true;
      //else
        //slatObj[k].checked = false;
    }
    document.form_calcvenetianmm.slat_value.value = slat;
  }
  if((document.form_calcvenetianmm.custom_drop.value!="")&&(document.form_calcvenetianmm.custom_width.value!="")) {
    
    GetCustomPrice();   
  }
  /* ******************************************* */

}

function formatDecimal(argvalue, addzero, decimaln) {
  var numOfDecimal = (decimaln == null) ? 2 : decimaln;
  var number = 1;

  number = Math.pow(10, numOfDecimal);

  argvalue = Math.round(parseFloat(argvalue) * number) / number;
  
  argvalue = "" + argvalue;

  if (argvalue.indexOf(".") == 0)
    argvalue = "0" + argvalue;

  if (addzero == true) {
    if (argvalue.indexOf(".") == -1)
      argvalue = argvalue + ".";

    while ((argvalue.indexOf(".") + 1) > (argvalue.length - numOfDecimal))
      argvalue = argvalue + "0";
  }

  return argvalue;
}

function selectSlat(slat)
{
  document.form_calcvenetianmm.slat_value.value=slat; // radul
  document.form_calcvenetianmm.price.value="";
  document.form_calcvenetianmm.saveprice.value="";
  //document.form_calcvenetianmm.addtobasket.disabled=true;
  //ControlAddBasket('disable');
  var slat_poz=-1;
  for(i=0; i<venetianmm_arr.length;i++)
  {
    if(venetianmm_arr[i][0]==slat)
      slat_poz=i;
  }
  if(slat_poz<0)
    return;

  min_width=parseInt(venetianmm_arr[slat_poz][2]);
  max_width=parseInt(venetianmm_arr[slat_poz][3]);
  min_drop=parseInt(venetianmm_arr[slat_poz][4]);
  max_drop=parseInt(venetianmm_arr[slat_poz][5]);

  price=0;
  
  discount=venetianmm_arr[slat_poz][6];

  var params = getParams();
  
  var width = params["width"];
  var drop = params["drop"];
  //var slat_param = params["slat"];
  
  if((width!="")&&(typeof(width) != "undefined"))
    document.form_calcvenetianmm.custom_width.value=unescape(width);
  if((drop!="")&&(typeof(drop) != "undefined"))
    document.form_calcvenetianmm.custom_drop.value=unescape(drop);
  if((slat!="")&&(typeof(slat) != "undefined"))
    document.form_calcvenetianmm.slat.value=unescape(slat);

  if((document.form_calcvenetianmm.custom_drop.value!="")&&(document.form_calcvenetianmm.custom_width.value!=""))
    GetCustomPrice();
}

function AddSlats()
{
  //add slats
  /*
  var params = getParams();
  
  var width = params["width"];
  var drop = params["drop"];
  var slat = params["slat"];
  
  if((width!="")&&(typeof(width) != "undefined"))
    document.form_calcvenetianmm.custom_width.value=unescape(width);
  if((drop!="")&&(typeof(drop) != "undefined"))
    document.form_calcvenetianmm.custom_drop.value=unescape(drop);
  if((slat!="")&&(typeof(slat) != "undefined"))
    document.form_calcvenetianmm.slat.value=unescape(slat);
  */
  /*
  document.form_calcvenetianmm.slat[0].checked = true; // select first slat
  var slat1 = document.getElementById("slat1");
  slat1.checked="checked";
  */
  var slat_value = GetSlatValue(document.form_calcvenetianmm);
  document.form_calcvenetianmm.slat_value.value = slat_value; // put selected slat's value in a hidden field

  selectSlat(slat_value); //select default slat
}

function selectBrackets(brackets)
{
  var cur_brackets_price=0;
  var base_price=parseFloat(price);
  if(brackets!=0)
    cur_brackets_price=1.95;
    
  if(base_price==0)
    return;

  var save_price=formatDecimal((price+cur_brackets_price)*discount/100, true, 2);
  document.form_calcvenetianmm.saveprice.value=save_price;
  document.form_calcvenetianmm.price.value=formatDecimal(price+cur_brackets_price-save_price, true, 2);
}

function ChangePrice(custom_ctrl, form_calc)
{
  custom_ctrl.value="";
  form_calc.price.value="";
  form_calc.saveprice.value="";
  price = 0;
  saveprice = 0;
  //form_calc.addtobasket.disabled=true; 
  //ControlAddBasket('disable');
}

function GetPrice(prices_arr, width, drop)
{
  var min_dif_width=-1, min_dif_drop=-1;
  var sel_width=-1, sel_drop=-1;
  var price=0;
  for(i=0;i<prices_arr[0].length;i++)
  {
    var cur_dif_width=prices_arr[1][i]-width;
    var cur_dif_drop=prices_arr[2][i]-drop;

    if(((min_dif_width==-1)||(cur_dif_width<min_dif_width))&&(cur_dif_width>=0))
    {
      min_dif_width=cur_dif_width;
      sel_width=prices_arr[1][i];
      sel_drop=-1;
      min_dif_drop=-1;
    }
    
    if(prices_arr[1][i]==sel_width)
      if(((min_dif_drop==-1)||(cur_dif_drop<min_dif_drop))&&(cur_dif_drop>=0)&&(min_dif_width!=-1))
      {
        min_dif_drop=cur_dif_drop;
        sel_drop=prices_arr[2][i];
        price=prices_arr[3][i];
      }
  }
  
  return price;
}

function GetMaxWidth(prices_arr, drop)
{
  var max_width=0;
  var min_dif_drop=-1;
  var sel_drop=-1;
  for(i=0;i<prices_arr[0].length;i++)
  {
    var cur_dif_drop=prices_arr[2][i]-drop;
    if(((min_dif_drop==-1)||(cur_dif_drop<min_dif_drop))&&(cur_dif_drop>=0))
    {
      min_dif_drop=cur_dif_drop;
      sel_drop=prices_arr[2][i];
      max_width=0;
    }
    
    if((prices_arr[2][i]==sel_drop)&&(max_width<prices_arr[1][i]))
      max_width=prices_arr[1][i];
  }
  return max_width;
}
  
function GetCustomPrice()
{
  price = 0;
  var custom_width=parseInt(document.form_calcvenetianmm.custom_width.value);
  var custom_drop=parseInt(document.form_calcvenetianmm.custom_drop.value);
  if((min_width>custom_width)||(max_width<custom_width)||(isNaN(custom_width)))
  {
    alert("Please enter width between "+min_width+"mm (min) and "+max_width+"mm (max) ");
    return false;
  }
  if((min_drop>custom_drop)||(max_drop<custom_drop)||(isNaN(custom_drop)))
  {
    alert("Please enter drop between "+min_drop+"mm (min) and "+max_drop+"mm (max)");
    return false;
  }
  
  //find slat
  var slat=-1;
  for(i=0;i<venetianmm_arr.length; i++)
  {
    if(venetianmm_arr[i][0]==document.form_calcvenetianmm.slat_value.value)
      slat=i;
  }
  if(slat<0)
    return;
  
  price=GetPrice(venetianmm_arr[slat][7], custom_width, custom_drop);
  
  if(price==0)
  {
    var strMaxWidth=GetMaxWidth(venetianmm_arr[slat][7], custom_drop);
    alert("Maximum width for the selected drop is "+strMaxWidth+" mm");
    return;
  }
  
  //brackets price
  var brackets=document.form_calcvenetianmm.brackets;
  var brackets_price=0;
  if(brackets.value!=0)
    brackets_price=1.95;
  
  // nextday price
  var delivery = document.form_calcvenetianmm.nextday;
  var delivery_price = 0;
  
  /* *** for bank holiday *** */
  if(delivery.value != 0 && false) {
    alert("Sorry, nextday service is no longer available on this product.");
    document.form_calcvenetianmm.nextday.selectedIndex = 1;
    delivery.value = 0;
  }


  if(delivery.value != 0)
    //delivery_price = 12.5; // adds 5 pounds to our price - OLD
    delivery_price = 5 / (1 - discount/100); // + 5 pounds

  price += delivery_price;
  
  var save_price=formatDecimal((price+brackets_price)*discount/100 , true, 2);
  document.form_calcvenetianmm.saveprice.value=save_price;
  document.form_calcvenetianmm.price.value=formatDecimal(price+brackets_price-save_price, true, 2);
  
  //document.form_calcvenetianmm.addtobasket.disabled=false;
  //ControlAddBasket();
  
}

function VerifyVenetianMMForm(form)
{
  if(form.price.value<=0)
  {
    alert('Please insert width and drop first and click the button "Price Calculator"');
    return false;
  }
  return true; 
}

function OnChangeLiftControl(lift)
{
  tilt=document.form_calcvenetianmm.tilt_control;
  if(lift==1)
    tilt.options[0]=new Option("Left");
  else
    tilt.options[0]=new Option("Right");
}
/*
function checkDelivery(formname) {
  var delivery = formname.nextday.value;
  return delivery;
}
*/

function checkDelivery(nextday)
{
  var cur_delivery_price=0;
  var base_price = parseFloat(price);
  if(nextday != 0)
    cur_delivery_price = 5;
    
  if(base_price == 0)
    return;

  var save_price=formatDecimal((price+cur_delivery_price)*discount/100, true, 2);
  document.form_calcvenetianmm.saveprice.value=save_price;
  document.form_calcvenetianmm.price.value = formatDecimal(base_price+cur_delivery_price-save_price, true, 2);
}