var moveTimer;
var imgCount;

function startSlideMove(dir)
{  
    if(imgCount <= 4)
    {
        return;
    }
     
    if(dir == 'left')
    {
        var i;
        moveTimer = new Array(imgCount);                                
        
        for(i=0;i<imgCount;i++)
        {    
             moveTimer[i] = window.setInterval("moveSlideLeft('imgTd" + i + "');",45);                 
        }
    }
    else if(dir == 'right')
    {
        var i;
        moveTimer = new Array(imgCount);
        
        for(i=0;i<imgCount;i++)
        {    
             moveTimer[i] = window.setInterval("moveSlideRight('imgTd" + i + "');",45);                 
        }
    }                
}

function stopSlideMove()
{
    if(imgCount <= 4)
    {
        return;
    }
    var i;                           
    for(i=0;i<imgCount;i++)
    {   
        clearInterval(moveTimer[i]);
    }
}

function moveSlideLeft(id)
{       
    if(imgCount <= 4)
    {
        return;
    }
    
    var obj = document.getElementById(id);          
    var leftVal = new String(obj.style.left);            
    
    leftVal = leftVal.replace('px','');                               
    
    if(leftVal.length == 0)            
        leftVal = 0;                
        
    if(leftVal <= -120)
    {        
        leftVal = ((imgCount - 1) * 120);
    }
    
    obj.style.left = Number(leftVal) - 5 + 'px';
}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

function moveSlideRight(id)
{   
    if(imgCount <= 4)
    {
        return;
    }
      
    var obj = document.getElementById(id);                      
    
    var leftVal = new String(obj.style.left);
    leftVal = leftVal.replace('px','');                                     
    
     if(leftVal >= ((imgCount - 1) * 120))
    {
        leftVal = -120;
    }            
    
    obj.style.left = (Number(leftVal) + 5)  + 'px';
}

function initFunctions(imgCnt)
{
    imgCount = imgCnt;    
}