var label = new Array();
var defaultMessage = "Message*:";

label[1] = "Message*:"; 
label[2] = "Description of the Problem*:"; 
label[3] = "What would you like an estimate for?*:";
label[4] = "Tell us about your service visit or installation*:";
label[5] = "Message*:"; 
 
$(document).ready(function(){ 
    $("#Contact").change(function() 
    { 
        var label_index 
 
        label_index = $("#Contact").val();
 
        if (label_index > 0 && label_index <= label.length) {
            $("#lbl-Message").text(label[label_index]);
            $("#MessageLabel").val(label[label_index]);
        } else {
        	$("#lbl-Message").text(defaultMessage);
            $("#MessageLabel").val(defaultMessage);
        }
    }); 
});