var mainWrapper;
  var right;
  var left;
  var buttons;
  var button;
  var leftColImage;
  var rightColImage;
  function isButton(side) {
      childs = buttons.childNodes;
      for (var i = 0; i < childs.length; i++) {
          if ((childs[i].className == side) || (childs[i].className == side + " show")) {
              return childs[i];        
          }
      }    
  }

  function hideColumn(column) {
      if (column == "left") { 
          button = isButton('left');
          switchLeft();         
      }
      if (column == "right") { 
          button = isButton('right');
          switchRight(); 
      }
  }

  function switchLeft() {
      if (left) {
          if (!left.className) {
              left.className = "hidden";
              button.className += " show";
              if (mainWrapper.className == "") {
                  mainWrapper.className = "visualColumnHideOne";
              } else {
                  mainWrapper.className = "visualColumnHideOneTwo";
              }
              createCookie("leftcol", "hidden");
          } else {
              left.className = "";
              button.className = "left";
              if (mainWrapper.className == "visualColumnHideOne") {
                  mainWrapper.className = "";
              } else {
                  mainWrapper.className = "visualColumnHideTwo";
              }
              createCookie("leftcol", '', -1);
          }
      }
  }

  function switchRight() {
      if (right) {
          if (!right.className) {
              right.className = "hidden";
              button.className += " show";
              if (mainWrapper.className == "") {
                  mainWrapper.className = "visualColumnHideTwo";
              } else {
                  mainWrapper.className = "visualColumnHideOneTwo";
              }
              createCookie("rightcol", "hidden");
          } else {
              right.className = "";
              button.className = "right";
              if (mainWrapper.className == "visualColumnHideTwo") {
                  mainWrapper.className = "";
              } else {
                  mainWrapper.className = "visualColumnHideOne";
              }
              createCookie("rightcol", "", -1)
          }
      }
  }