var FormResources = new Object;
FormResources.name_error = "Name is required.";
FormResources.address_error = "Address is required.";
FormResources.email_error = "Email is required.";
FormResources.email_invalid_error = "Email must be well formed.";
FormResources.message_error = "Message is required.";

var requiredFields = new Array();
var firstRun = true;

function validateForm (formObject) {

  if(firstRun==false)setRequiredFields(true);
  errorFields = new Array();
  var elemValue, elemName, FormResource, elemType, errorText, tempEmail;
  var requiredField = false;
  var errors = new Array();
  for (x=0; x<formObject.length; x++) { 
	  
	  this.formElement = formObject.elements[x];
	  requiredField = (this.formElement.className == 'required');
	  
		if(requiredField){
		  errorText = "";
		  elemName = this.formElement.getAttribute('name');
		  elemType = (this.formElement.getAttribute('type'))? this.formElement.getAttribute('type') : this.formElement.type;
		  elemValue =	this.formElement.value;
			
			if(elemName == 'email'){
				if (!isNotEmpty(elemValue)) errorText = FormResources['email_error'];
				if (!errorText && isNotEmpty(elemValue) && !checkEmail(elemValue)) errorText = FormResources['email_invalid_error'];
			
			} else if ((elemName == 'message') && elemType == 'textarea' && !isNotEmpty(elemValue)) {
			  errorText = FormResources['message_error'];
			
			} else if (!errorText && elemName == 'name' && elemType == 'text' && !isNotEmpty(elemValue)){
			  errorText = FormResources['name_error'];
			}
			if(firstRun){
			requiredFields.push(this.formElement);
			}
			if(errorText){
        errorFields.push(this.formElement);
			  errors.push(errorText);
			}
		}
	}// end for loop
  firstRun = false;
	setRequiredFields(false);
	if (errors.length>0) {
      
	  if(isDOM('errors'))if(!isDOM('errorsList'))getElem('errors').innerHTML='<ul id="errorsList"></ul>';

	  if(isDOM('errorsList'))getElem('errorsList').innerHTML = '';
	  
	  var errorHTML = "";
	  for (errorIndex=0; errorIndex < errors.length; errorIndex++) { 
	    errorHTML += "<li>&nbsp;"+ errors[errorIndex] +"</li>";
	  }
	  if(isDOM('errorsList'))getElem('errorsList').innerHTML = errorHTML;
	  return false;
  } else {
	 if(isDOM('errors'))getElem('errors').innerHTML='';
  return true;   /// needs to be true for submit
  }	
}

function setRequiredFields (rfoe) {
  if(rfoe){
	for (x=0; x<requiredFields.length; x++) { 
	  if (requiredFields[x].getAttribute('name')=="agree" && BrowserDetect.browser != 'Explorer') {
        document.getElementById('agree_div').className = "required";
	  } else {
		requiredFields[x].className = "required";
	  }
	}
  }else{
	for (x=0; x<requiredFields.length; x++) { 
	  if (requiredFields[x].getAttribute('name')=="agree" && BrowserDetect.browser != 'Explorer') {
        document.getElementById('agree_div').className = "";
	  } else {
	    requiredFields[x].className = "";
	  }
	}
	for (x=0; x<errorFields.length; x++) { 
	  if (errorFields[x].getAttribute('name')=="agree" && BrowserDetect.browser != 'Explorer') {
        document.getElementById('agree_div').className = "required";
	  } else {
	    errorFields[x].className = "required";
	  }
	}	 
  }
}

var gotDOM = false;
function isDOM(elemOrIdString){
	elemOrIdString = (typeof elemOrIdString == 'string') ? elemOrIdString : elemOrIdString.id;
	gotDOM = (document.getElementById(elemOrIdString))? true: false;
	return gotDOM;
}

function isNotEmpty (elemValueString) {
	return /\S+/.test(elemValueString);
}

function isNotChecked (checkedElem) {
	return !checkedElem.checked;
}

function isNotSelected (selectElem) {
	var isNotSelected = (selectElem.options[selectElem.selectedIndex].getAttribute('value'))? false : true;
	return isNotSelected;
}

function checkEmail (email) {
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	return filter.test(email);
}
function getElem() {  
	if(arguments.length > 1)var g_elements = new Array();
		var g_element;
		for (i = 0; i < arguments.length; i++) {
			g_element = (typeof arguments[i] == 'string') ? document.getElementById(arguments[i]) : arguments[i];
			if (arguments.length == 1) return g_element;
			g_elements.push(g_element);
		}
	return g_elements;
}