var inter; 
function startScroll( value ) 
{ 
inter= setInterval('doScroll('+value+')', 50); 
}
function doScroll( value ) 
{ 
parent.Hauptfenster.scrollBy(0, value ); 
} 
function stopScroll() 
{
clearInterval(inter);
}

function startScrollq( value ) 
{ 
inter= setInterval('doScrollq('+value+')', 50); 
}
function doScrollq( value ) 
{ 
parent.Hauptfenster.scrollBy(value, 0 ); 
} 
function stopScrollq() 
{
clearInterval(inter);
}