function showCart()
{
  var wLeft = screen.width / 2 - 250;
  var wTop = screen.height / 2 - 250;
  wCart = window.open('/cart.php','cart','width=500,height=500,top='+wTop+',left='+wLeft+',toolbar="no",location="no",directories="no",status="no",menubar="no",scrollbars="no",resizable="no"');
  wCart.focus();
  return false;
}

function addToCart(id)
{
  var wLeft = screen.width / 2 - 250;
  var wTop = screen.height / 2 - 250;
  wCart = window.open('/cart.php?add='+id,'cart','width=500,height=500,top='+wTop+',left='+wLeft+',toolbar="no",location="no",directories="no",status="no",menubar="no",scrollbars="no",resizable="no"');
  wCart.focus();
  location.reload();
  return false;
}

function checkOrderForm()
{
  var form = document.forms['cart'];
  if(trim(form['orderer'].value) == '')
  {
    alert('Представьтесь, пожалуйста.');
    form['orderer'].focus();
    return false;
  }
  else if(trim(form['coords'].value) == '')
  {
    alert('Укажите ваши координаты.');
    form['coords'].focus();
    return false;
  }
  else form.submit();
}

function trim(string)
{
  if(string != null) return string.replace(/(^\s+)|(\s+$)/g, "");
  else return null;
}

function md5(string)
{
  function RotateLeft(lValue, iShiftBits) { return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits)); }
  function AddUnsigned(lX,lY)
  {
    var lX4,lY4,lX8,lY8,lResult;
    lX8 = (lX & 0x80000000);
    lY8 = (lY & 0x80000000);
    lX4 = (lX & 0x40000000);
    lY4 = (lY & 0x40000000);
    lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
    if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
    if (lX4 | lY4)
    {
      if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
      else return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
    }
    else return (lResult ^ lX8 ^ lY8);
  }
  function F(x,y,z) { return (x & y) | ((~x) & z); }
  function G(x,y,z) { return (x & z) | (y & (~z)); }
  function H(x,y,z) { return (x ^ y ^ z); }
  function I(x,y,z) { return (y ^ (x | (~z))); }
  function FF(a,b,c,d,x,s,ac)
  {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
  function GG(a,b,c,d,x,s,ac)
  {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
  function HH(a,b,c,d,x,s,ac)
  {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
  function II(a,b,c,d,x,s,ac)
  {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
  function ConvertToWordArray(string)
  {
    var lWordCount;
    var lMessageLength = string.length;
    var lNumberOfWords_temp1=lMessageLength + 8;
    var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
    var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
    var lWordArray=Array(lNumberOfWords-1);
    var lBytePosition = 0;
    var lByteCount = 0;
    while ( lByteCount < lMessageLength )
    {
      lWordCount = (lByteCount-(lByteCount % 4))/4;
      lBytePosition = (lByteCount % 4)*8;
      lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));
      lByteCount++;
    }
    lWordCount = (lByteCount-(lByteCount % 4))/4;
    lBytePosition = (lByteCount % 4)*8;
    lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
    lWordArray[lNumberOfWords-2] = lMessageLength<<3;
    lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
    return lWordArray;
  };
  function WordToHex(lValue)
  {
    var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
    for (lCount = 0;lCount<=3;lCount++)
    {
      lByte = (lValue>>>(lCount*8)) & 255;
      WordToHexValue_temp = "0" + lByte.toString(16);
      WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
    }
    return WordToHexValue;
  };
  function Utf8Encode(string)
  {
    string = string.replace(/\r\n/g,"\n");
    var utftext = "";

    for (var n = 0; n < string.length; n++)
    {
      var c = string.charCodeAt(n);
      if (c < 128) utftext += String.fromCharCode(c);
      else if((c > 127) && (c < 2048))
      {
        utftext += String.fromCharCode((c >> 6) | 192);
        utftext += String.fromCharCode((c & 63) | 128);
      }
      else
      {
        utftext += String.fromCharCode((c >> 12) | 224);
        utftext += String.fromCharCode(((c >> 6) & 63) | 128);
        utftext += String.fromCharCode((c & 63) | 128);
      }
    }
    return utftext;
  };
  var x=Array();
  var k,AA,BB,CC,DD,a,b,c,d;
  var S11=7, S12=12, S13=17, S14=22;
  var S21=5, S22=9 , S23=14, S24=20;
  var S31=4, S32=11, S33=16, S34=23;
  var S41=6, S42=10, S43=15, S44=21;
  string = Utf8Encode(string);
  x = ConvertToWordArray(string);
  a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
  for (k=0;k<x.length;k+=16)
  {
    AA=a; BB=b; CC=c; DD=d;
    a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
    d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
    c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
    b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
    a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
    d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
    c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
    b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
    a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
    d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
    c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
    b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
    a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
    d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
    c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
    b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
    a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
    d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
    c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
    b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
    a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
    d=GG(d,a,b,c,x[k+10],S22,0x2441453);
    c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
    b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
    a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
    d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
    c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
    b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
    a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
    d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
    c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
    b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
    a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
    d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
    c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
    b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
    a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
    d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
    c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
    b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
    a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
    d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
    c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
    b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
    a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
    d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
    c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
    b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
    a=II(a,b,c,d,x[k+0], S41,0xF4292244);
    d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
    c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
    b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
    a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
    d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
    c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
    b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
    a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
    d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
    c=II(c,d,a,b,x[k+6], S43,0xA3014314);
    b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
    a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
    d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
    c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
    b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
    a=AddUnsigned(a,AA);
    b=AddUnsigned(b,BB);
    c=AddUnsigned(c,CC);
    d=AddUnsigned(d,DD);
  }
  var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
  return temp.toLowerCase();
}

/**
 * http://www.openjs.com/scripts/events/keyboard_shortcuts/
 * Version : 2.01.A
 * By Binny V A
 * License : BSD
 */
shortcut = {
  'all_shortcuts':{},//All the shortcuts are stored in this array
  'add': function(shortcut_combination,callback,opt) {
    //Provide a set of default options
    var default_options = {
      'type':'keydown',
      'propagate':false,
      'disable_in_input':false,
      'target':document,
      'keycode':false
    }
    if(!opt) opt = default_options;
    else {
      for(var dfo in default_options) {
        if(typeof opt[dfo] == 'undefined') opt[dfo] = default_options[dfo];
      }
    }

    var ele = opt.target
    if(typeof opt.target == 'string') ele = document.getElementById(opt.target);
    var ths = this;
    shortcut_combination = shortcut_combination.toLowerCase();

    //The function to be called at keypress
    var func = function(e) {
      e = e || window.event;

      if(opt['disable_in_input']) { //Don't enable shortcut keys in Input, Textarea fields
        var element;
        if(e.target) element=e.target;
        else if(e.srcElement) element=e.srcElement;
        if(element.nodeType==3) element=element.parentNode;

        if(element.tagName == 'INPUT' || element.tagName == 'TEXTAREA') return;
      }

      //Find Which key is pressed
      if (e.keyCode) code = e.keyCode;
      else if (e.which) code = e.which;
      var character = String.fromCharCode(code).toLowerCase();

      if(code == 188) character=","; //If the user presses , when the type is onkeydown
      if(code == 190) character="."; //If the user presses , when the type is onkeydown

      var keys = shortcut_combination.split("+");
      //Key Pressed - counts the number of valid keypresses - if it is same as the number of keys, the shortcut function is invoked
      var kp = 0;

      //Work around for stupid Shift key bug created by using lowercase - as a result the shift+num combination was broken
      var shift_nums = {
        "`":"~",
        "1":"!",
        "2":"@",
        "3":"#",
        "4":"$",
        "5":"%",
        "6":"^",
        "7":"&",
        "8":"*",
        "9":"(",
        "0":")",
        "-":"_",
        "=":"+",
        ";":":",
        "'":"\"",
        ",":"<",
        ".":">",
        "/":"?",
        "\\":"|"
      }
      //Special Keys - and their codes
      var special_keys = {
        'esc':27,
        'escape':27,
        'tab':9,
        'space':32,
        'return':13,
        'enter':13,
        'backspace':8,

        'scrolllock':145,
        'scroll_lock':145,
        'scroll':145,
        'capslock':20,
        'caps_lock':20,
        'caps':20,
        'numlock':144,
        'num_lock':144,
        'num':144,

        'pause':19,
        'break':19,

        'insert':45,
        'home':36,
        'delete':46,
        'end':35,

        'pageup':33,
        'page_up':33,
        'pu':33,

        'pagedown':34,
        'page_down':34,
        'pd':34,

        'left':37,
        'up':38,
        'right':39,
        'down':40,

        'f1':112,
        'f2':113,
        'f3':114,
        'f4':115,
        'f5':116,
        'f6':117,
        'f7':118,
        'f8':119,
        'f9':120,
        'f10':121,
        'f11':122,
        'f12':123
      }

      var modifiers = {
        shift: { wanted:false, pressed:false},
        ctrl : { wanted:false, pressed:false},
        alt  : { wanted:false, pressed:false},
        meta : { wanted:false, pressed:false}  //Meta is Mac specific
      };

      if(e.ctrlKey)  modifiers.ctrl.pressed = true;
      if(e.shiftKey)  modifiers.shift.pressed = true;
      if(e.altKey)  modifiers.alt.pressed = true;
      if(e.metaKey)   modifiers.meta.pressed = true;

      for(var i=0; k=keys[i],i<keys.length; i++) {
        //Modifiers
        if(k == 'ctrl' || k == 'control') {
          kp++;
          modifiers.ctrl.wanted = true;

        } else if(k == 'shift') {
          kp++;
          modifiers.shift.wanted = true;

        } else if(k == 'alt') {
          kp++;
          modifiers.alt.wanted = true;
        } else if(k == 'meta') {
          kp++;
          modifiers.meta.wanted = true;
        } else if(k.length > 1) { //If it is a special key
          if(special_keys[k] == code) kp++;

        } else if(opt['keycode']) {
          if(opt['keycode'] == code) kp++;

        } else { //The special keys did not match
          if(character == k) kp++;
          else {
            if(shift_nums[character] && e.shiftKey) { //Stupid Shift key bug created by using lowercase
              character = shift_nums[character];
              if(character == k) kp++;
            }
          }
        }
      }

      if(kp == keys.length &&
            modifiers.ctrl.pressed == modifiers.ctrl.wanted &&
            modifiers.shift.pressed == modifiers.shift.wanted &&
            modifiers.alt.pressed == modifiers.alt.wanted &&
            modifiers.meta.pressed == modifiers.meta.wanted) {
        callback(e);

        if(!opt['propagate']) { //Stop the event
          //e.cancelBubble is supported by IE - this will kill the bubbling process.
          e.cancelBubble = true;
          e.returnValue = false;

          //e.stopPropagation works in Firefox.
          if (e.stopPropagation) {
            e.stopPropagation();
            e.preventDefault();
          }
          return false;
        }
      }
    }
    this.all_shortcuts[shortcut_combination] = {
      'callback':func,
      'target':ele,
      'event': opt['type']
    };
    //Attach the function with the event
    if(ele.addEventListener) ele.addEventListener(opt['type'], func, false);
    else if(ele.attachEvent) ele.attachEvent('on'+opt['type'], func);
    else ele['on'+opt['type']] = func;
  },

  //Remove the shortcut - just specify the shortcut and I will remove the binding
  'remove':function(shortcut_combination) {
    shortcut_combination = shortcut_combination.toLowerCase();
    var binding = this.all_shortcuts[shortcut_combination];
    delete(this.all_shortcuts[shortcut_combination])
    if(!binding) return;
    var type = binding['event'];
    var ele = binding['target'];
    var callback = binding['callback'];

    if(ele.detachEvent) ele.detachEvent('on'+type, callback);
    else if(ele.removeEventListener) ele.removeEventListener(type, callback, false);
    else ele['on'+type] = false;
  }
}