function enable(id, truefalse){

	if (document.getElementById) { // DOM3 = IE5, NS6
        document.getElementById(id).disabled = truefalse;
        if (truefalse) document.getElementById(id).checked = false;
    } else {
        if (document.layers) { // Netscape 4
        	document.id.disabled = truefalse;
        	if (truefalse) document.id.checked = false;
        } else { // IE 4
        	document.all.id.disabled = truefalse;
        	if (truefalse) document.all.id.checked = false;
        }
    }
    	
}

function prog_enable(all){
    
    if (!all){
    	if (document.getElementById('AIE_SriLanka_Edition_Fotografie').checked &&
    		document.getElementById('AIE_SriLanka_Kreativitaet_fuer_Lehrer').checked &&
    		document.getElementById('AIE_Wien_Edition_Fotografie').checked &&
    		document.getElementById('CIE_S_Afrika_Brot_backen').checked &&
    		document.getElementById('Infrastruktur_Partnerschulen').checked){
    		
    		document.getElementById('Alle_Programme').checked = true;
    		document.getElementById('AIE_SriLanka_Edition_Fotografie').checked = false;
    		document.getElementById('AIE_SriLanka_Kreativitaet_fuer_Lehrer').checked = false;
    		document.getElementById('AIE_Wien_Edition_Fotografie').checked = false;
    		document.getElementById('CIE_S_Afrika_Brot_backen').checked = false;
    		document.getElementById('Infrastruktur_Partnerschulen').checked = false;
    		
    	} else if (document.getElementById('AIE_SriLanka_Edition_Fotografie').checked ||
    		document.getElementById('AIE_SriLanka_Kreativitaet_fuer_Lehrer').checked ||
    		document.getElementById('AIE_Wien_Edition_Fotografie').checked ||
    		document.getElementById('CIE_S_Afrika_Brot_backen').checked ||
    		document.getElementById('Infrastruktur_Partnerschulen').checked){
    		
    		document.getElementById('Alle_Programme').checked = false;
    		
    	}
    } else {
    	document.getElementById('AIE_SriLanka_Edition_Fotografie').checked = false;
    	document.getElementById('AIE_SriLanka_Kreativitaet_fuer_Lehrer').checked = false;
    	document.getElementById('AIE_Wien_Edition_Fotografie').checked = false;
    	document.getElementById('CIE_S_Afrika_Brot_backen').checked = false;
    	document.getElementById('Infrastruktur_Partnerschulen').checked = false;
    }
    	
}