function showsub(id, TotVociMenu) {
		
	mainmenu_id = "mainmenu_" + id;
	submenu_id = "submenu_" + id;
	
	/*document.getElementById("mainmenu_welkom").className = '';
	document.getElementById("mainmenu_hosting").className = '';
	document.getElementById("mainmenu_servers").className = '';
	document.getElementById("mainmenu_overigediensten").className = '';
	document.getElementById("mainmenu_support").className = '';*/
	//document.getElementById("mainmenu_tools").className = '';
	//document.getElementById("mainmenu_contact").className = '';
	//document.getElementById("mainmenu_registreren").className = '';
	
	for (i=1; i<TotVociMenu; i++) {
        
        document.getElementById("mainmenu_" + i).className = '';
        document.getElementById("submenu_" + i).style.display = 'none';
        
        //alert("submenu_" + i);
    } 

    
	document.getElementById(mainmenu_id).className = 'active';
	
		
	/*document.getElementById("submenu_welkom").style.display = 'none';
	document.getElementById("submenu_hosting").style.display = 'none';
	document.getElementById("submenu_servers").style.display = 'none';
	document.getElementById("submenu_overigediensten").style.display = 'none';
	document.getElementById("submenu_support").style.display = 'none';
	//document.getElementById("submenu_tools").style.display = 'none';*/
	//document.getElementById("submenu_contact").style.display = 'none';
	//document.getElementById("submenu_registreren").style.display = 'none';
	
	document.getElementById(submenu_id).style.display = 'block';
}