function OpenWindow1() 
{
 window.open("","kunde",'directories=no,location=no,titlebar=no,toolbar=no,menubar=yes,scrollbars=yes,resizable=yes,width=900,height=600,left=5,top=5')
}

function OpenWindow2() 
{
 window.open("","grafik",'directories=no,location=no,titlebar=no,toolbar=no,menubar=yes,scrollbars=yes,resizable=yes,width=1000,height=700,left=5,top=5')
}