function stopErrors() { 
 // return true;  // false is for debugg
}
window.onerror = stopErrors; 

function MM_jumpMenu(targ,selObj,restore){ //v3.0
   eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
   if (restore) selObj.selectedIndex=0;
 } 
 

function open_infowindow_bildformate()
{
window.open('http://www.nachhilfe.tv/hpunkte/info_bildformate.php','info_bildformate1','width=650,height=500,scrollbars=0,toolbar=0,menubar=0,titlebar=0,location=0,resizable=1,scrollbars=1,top=20,left=10');
}