var initialValue;
var initialValue2;

    function HandleClientLoaded(sender, eventArgs)
    {
        initialValue = sender.get_minimumValue();
        HandleClientValueChange(sender, null);
    }

    function HandleClientValueChange(sender, eventArgs)
    {
        var wrapperDiv = document.getElementById('images_wrapper');
        var contentDiv = document.getElementById('images_content');
        
        var oldValue = (eventArgs) ? eventArgs.get_oldValue() : sender.get_minimumValue();
        var change = sender.get_value() - oldValue;
        
        var contentDivWidth = contentDiv.scrollWidth - wrapperDiv.offsetWidth;
        var calculatedChangeStep = contentDivWidth / ((sender.get_maximumValue() - sender.get_minimumValue()) / sender.get_slideStep());
        
        initialValue = initialValue - change * calculatedChangeStep;
        
        if (sender.get_value() == sender.get_minimumValue())
        {
            contentDiv.style.left = 0 + 'px';
            initialValue = sender.get_minimumValue();
        }
        else
        {
            contentDiv.style.left = initialValue + 'px';
        }
    }
    
    function HandleClientLoaded2(sender, eventArgs)
    {
        initialValue2 = sender.get_minimumValue();
        HandleClientValueChange2(sender, null);
    }

    function HandleClientValueChange2(sender, eventArgs)
    {
        var wrapperDiv = document.getElementById('galleries_wrapper');
        var contentDiv = document.getElementById('galleries_content');
        
        var oldValue = (eventArgs) ? eventArgs.get_oldValue() : sender.get_minimumValue();
        var change = sender.get_value() - oldValue;
        
        var contentDivWidth = contentDiv.scrollWidth - wrapperDiv.offsetWidth;
        var calculatedChangeStep = contentDivWidth / ((sender.get_maximumValue() - sender.get_minimumValue()) / sender.get_slideStep());
        
        initialValue2 = initialValue2 - change * calculatedChangeStep;
        
        if (sender.get_value() == sender.get_minimumValue())
        {
            contentDiv.style.left = 0 + 'px';
            initialValue2 = sender.get_minimumValue();
        }
        else
        {
            contentDiv.style.left = initialValue2 + 'px';
        }
    }