$(function(){

    $("form").submit(function(){
        var sales = $("input#sales").val();
        var people = $("input#people").val();
        var guest = $("input#guest").val();
        var perm = $("input#perm").val();
        var color = $("input#color").val();
	var result = true;
        if(sales == "" || sales.match(/[^0-9]+/)){
            $("input#sales").css("background-color","#fcc");
            result = false;
        }
        if(people == "" || people.match(/[^0-9]+/)){
            $("input#people").css("background-color","#fcc");
            result = false;
        }
        if(guest == "" || guest.match(/[^0-9]+/)){
            $("input#guest").css("background-color","#fcc");
            result = false;
        }
        if(perm == "" || perm.match(/[^0-9]+/)){
            $("input#perm").css("background-color","#fcc");
            result = false;
        }
        if(color == "" || color.match(/[^0-9]+/)){
            $("input#color").css("background-color","#fcc");
            result = false;
        }
            return result;
    });
});