$(function($){

// prvni pozice nastavena v sablone
var width = 176;  // sirka elementu
var total = 10 - 2;   // pro zobrazeni 3 zakazek
var max = total * 176;  // maximalni posun

  var left = parseInt($("#first_position").val());
  var first_position = left;

    $("#gallery_hp .content_module").css("left", left+"px");
    left = left + width;


    if(first_position < (-1 * max + width) ){
      first_position = (-1 * max) ;
      $("#gallery_position_right").css("display","none");
    }else{
      $("#gallery_position_left").css("display","block");
    }


   if(first_position > - width){ 
      $("#gallery_position_left").css("display","none");
  }else{
      $("#gallery_position_right").css("display","block");
    }    
  
  

  
  $("#gallery_position_right").click(function(){
    first_position = first_position - width;
   
    if(first_position < (-1 * max) ){
      first_position = (-1 * max) ;
    }
    
    if(first_position < (-1 * max + width) ){
      first_position = (-1 * max) ;
      $("#gallery_position_right").css("display","none");
    }else{
      $("#gallery_position_left").css("display","block");
    }
    
    $("#first_position").val(first_position);
    
    left = first_position;
  
    
    $("#gallery_hp .content_module").animate({'left' : first_position+"px"});
    
  
  });
    


$("#gallery_position_left").click(function(){
    first_position = first_position + width;
    
   if(first_position > 0){ 
      first_position = 0;
    }

   if(first_position > - width){ 
      $("#gallery_position_left").css("display","none");
  }else{
      $("#gallery_position_right").css("display","block");
    }    

$("#first_position").val(first_position);
    
    left = first_position;
  
    $("#gallery_hp .content_module").animate({'left' : first_position+"px"});
    
  
  });


});