/**
 *  Zusatzfunktionen Glider
 *  (Zähler beim Vor- und Zurückblättern) 
 *     
*/

function countPrev(glider, max) 
{
    var currIndex = document.getElementById(glider+'_count').innerHTML;
    if (currIndex == 1)
    {
        currIndex = max;  
    }
    else {
        currIndex--;        
    }
    document.getElementById(glider+'_count').innerHTML =    currIndex;  
}

function countNext(glider, max) 
{
    var currIndex = document.getElementById(glider+'_count').innerHTML;
    if (currIndex == max)
    {
        currIndex = 1;  
    }
    else {
        currIndex++;        
    }
    document.getElementById(glider+'_count').innerHTML =    currIndex;
    
}