// JavaScript Document
$(document).ready(function(){				
var scrollBoxSuwakH;
var scrollBoxH;
var limitDown;
var ile_px = 3;
var czas = 15;
var margines = 25;
function zmienne(){
	scrollBoxSuwakH = $("#scrollBoxSuwak").height();
    scrollBoxH = $("#scrollBox").height();
	limitDown = -(scrollBoxSuwakH-scrollBoxH);
}
var myInterval;
var myNumber=margines;
var zm;
var restartuj_zmienne = setInterval(zmienne,1000);
function scroll_box(){
	if(zm =="minus"){
		if(myNumber <=margines){
		myNumber=myNumber+ile_px;
		}
	}else{
		if(myNumber >(limitDown-margines)){
		myNumber=myNumber-ile_px
		}
	}
	$("#scrollBoxSuwak").css({'top':''+myNumber+'px'});	
}
$("#scrollBoxSuwak").css({'top':''+margines+'px'});	
$("#scrollBoxUp").hide();
$("#scrollBoxDown").hide();
$("#scrollBox").mouseenter(function(){
		 //zmienne();
    	 $("#scrollBoxUp").show("fast");
		 $("#scrollBoxDown").show("fast");
    }).mouseleave(function(){
     	$("#scrollBoxUp").hide("fast");
	 	$("#scrollBoxDown").hide("fast");
    });
$("#scrollBoxUp").mouseover(function(){
	  zm = "minus";					
      myInterval = setInterval(scroll_box,czas);
    }).mouseout(function(){
      clearInterval(myInterval);
    });
$("#scrollBoxDown").mouseover(function(){
	  zm = "plus";					  
      myInterval = setInterval(scroll_box,czas);
    }).mouseout(function(){
      clearInterval(myInterval);
    });
});