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Код

function Scroll_moveForvard()
{
  if (count < scrollValue)
  {         
    speed = (scrollValue - count) / this.kStop + 1;
    this.position = this.position - speed;        
        
    object.style.left = this.position + 'px';            
    count = count + speed;
  }
  else
  {        
    clearInterval(this.timer);
    this.timer = 0;
  }
}

function Scroll_initMoveForvard()
{ 
  if (this.timer == 0)
  {
    if (this.visibleElement < this.elementCount)
    {
      scrollValue = this.scrollWidth;
      this.visibleElement = this.visibleElement + 1;               
      count = 0;

      object = parentdoc.getElementById(this.scrollBlock);      
      
      this.timer = setInterval(this.moveForvard(), this.timeOut);
    }
  }
}    

var object;
var count = 0;
var scrollValue;
var parentdoc;

  
function Scroll(doc, scrollBlock, elementCount, width)
{
  parentdoc = doc;
  
  this.scrollBlock = scrollBlock;
  
  this.position = 0;
  this.scrollWidth = width;          
  
  this.timer = 0;
    
  this.kStop = 2.5;
  this.timeOut = 50;

  this.elementCount = elementCount;
  this.visibleElement = 1;
  
  this.moveBack = Scroll_moveBack;
  this.moveForvard = Scroll_moveForvard;
  this.initMoveBack = Scroll_initMoveBack;
  this.initMoveForvard = Scroll_initMoveForvard;
/*  this.initMoveTo = Scroll_initMoveTo;
  this.controlBackHover = Scroll_controlBackHover;
  this.controlBackOut = Scroll_controlBackOut;
  this.controlForvardHover = Scroll_controllForvardHover;
  this.controlForvardOut = Scroll_controlForvardOut;*/
}