function focusLabels(){
if(!document.getElementsByTagName) return false;
var labels = document.getElementsByTagName("label");
for (var i=0; i<labels.length; i++) {
if(!labels[i].getAttribute("for")) continue;
labels[i].onclick = function() {
var id = this.getAttribute("for");
if (!document.getElementById(id)) return false;
var element =document.getElementById(id);
element.focus();
}
}
}
function resetFields(whichform){
for(var i=0; i < whichform.elements.length; i++){
var element = whichform.elements[i];
if(element.type == "submit") continue;
if(!element.defaultValue) continue;
element.onfocus = function() {
if(this.value == this.defaultValue) {
this.value = "";
}
}
element.onblur = function (){
if(this.value == ""){
this.value = this.defaultValue;
}
}
}
}
function prepareForms() {
for(var i=0;i < document.forms.length; i++){
var thisform = document.forms[i];
resetFields(thisform);
}
}
function validateForm(whichform) {
for(var i=0; i < whichform.elements.length; i++) {
var element = whichform.elements[i];
if (element.className.indexOf("required") !=-1) {
if(!isFilled(element)) {
alert("Please fill in the "+element.name+" field.");
return false;
}
}
if (element.className.indexOf("email") !=-1) {
if (!isEmail(element)) {
alert("The "+element.name+" field must be a valid email address.");
return false;
}
}
}
return true;
}
function isFilled(field) {
if(field.value.length < 1 || field.value == field.defaultValue) {
return false;
} else {
return true;
}
}
function isEmail(field) {
if (field.value.indexOf("@") == -1 || field.value.indexOf(".") == -1)
{
return false;
}else {
return true;
}
}
function prepareForms(){
for(var i=0; i < document.forms.length; i++) {
var thisform = document.forms[i];
resetFields(thisform);
thisform.onsubmit = function() {
return validateForm(this);
}
}
}
