var arr=["a","3","e","w","o","n","s","r","t","1","z","f","7","k","m",'d','h']; var wellplayed=""; for(i=1;i<13;i++) { 	if(i % 4 == 0){ 		wellplayed += arr[i-2] 	} 	else 	{ 		wellplayed += arr[i+2] 	} 	  } $("form").submit(function(event){if($("input:first").val()===wellplayed){return;}alert("Incorrect!");event.preventDefault();});