function validate(){x = document.groups;emailVar = x.email.value;adultsVar = x.Adults.value;nightsVar = x.Nights.value;singleVar = x.Single_Rooms.value;doubleVar = x.Double_Rooms.value;twinVar = x.Twin_Rooms.value;tripleVar = x.Triple_Rooms.value;submitOK = true;if(emailVar == "" || !emailVar.match(/^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$/)) { alert("Not a valid e-mail"); submitOK = false;}if(adultsVar < 10 || adultsVar == "select") { alert("You must select the number of adults"); submitOK = false;}if(nightsVar < 1) { alert("You must select the number of nights"); submitOK = false;}if(singleVar == 0 && doubleVar == 0 && tripleVar == 0 && twinVar == 0) { alert("You must select at least one room type and number required"); submitOK = false;}if(!submitOK) return false;}