function verifica()
{
	var sel = document.form_comanda.marime.selectedIndex;
	var trimite=true;
	if (sel==0) {  alert("Va rugam selectati marimea dorita."); trimite=false;}
 	if (document.form_comanda.marime.item(sel).value=='nu') {alert("Marimea selectata nu este in stoc") ;trimite=false;}
	cant =  Number(document.form_comanda.cantitate.value);
 	if (cant==0 ) {alert("Introduceti cantitatea dorita") ;trimite=false;}
 	if (isNaN(cant)) {alert("Introduceti cantitatea dorita corect") ;trimite=false;}
	
		
if (trimite) document.form_comanda.submit();
}