$(document).ready(function(){
	$('input').keypress(function(){
		if($(this).hasClass('error')){
			$(this).removeClass('error');	
		}
	});
});

function validate_login(){
	var loginFlag = 0;

	resetFields();
	
	if(document.employee_form.un.value == ''){
		$('form#employee_form input#un').addClass('error');
		loginFlag = 1;
	}
	
	if(document.employee_form.pw.value == ''){
		$('form#employee_form input#pw').addClass('error');
		loginFlag = 1;
	}
	
	if(loginFlag != 1){
		document.employee_form.submit();	
	}
}

function validate_contact(){
	var contactFlag = 0;

	resetFields();
	
	if(document.contact_form.first_name.value == ''){
		$('form#contact_form input#first_name').addClass('error');
		contactFlag = 1;
	}
	
	if(document.contact_form.last_name.value == ''){
		$('form#contact_form input#last_name').addClass('error');
		contactFlag = 1;
	}
	
	if(document.contact_form.email.value == ''){
		$('form#contact_form input#email').addClass('error');
		contactFlag = 1;
	} else {
		if(!checkEmail(document.contact_form.email.value)){
			document.contact_form.email.value = '';
			$('form#contact_form input#email').addClass('error');
			contactFlag = 1;
		}
	}
	
	if(document.contact_form.company.value == ''){
		$('form#contact_form input#company').addClass('error');
		contactFlag = 1;
	}
	
	if(document.contact_form.city.value == ''){
		$('form#contact_form input#city').addClass('error');
		contactFlag = 1;
	}
	
	if(document.contact_form.state.value == ''){
		$('form#contact_form input#state').addClass('error');
		contactFlag = 1;
	}
	
	if(contactFlag != 1){
		document.contact_form.submit();	
	}
}

function resetFields(){
	$('form input').removeClass('error');
}

function validate_key_login(key){
	if(key.keyCode == 13){
		validate_login();
	}
}

function validate_key_contact(key){
	if(key.keyCode == 13){
		validate_contact();
	}
}

function checkEmail(str) {
	var at = '@';
	var dot = '.';
	var lat = str.indexOf(at);
	var lstr = str.length;
	var ldot = str.indexOf(dot);
	
	if(str.indexOf(at) == -1){
	   return false;
	}

	if(str.indexOf(at) == -1 || str.indexOf(at) == 0 || str.indexOf(at) == lstr){
	   return false;
	}

	if(str.indexOf(dot) == -1 || str.indexOf(dot) == 0 || str.indexOf(dot) == lstr){
		return false;
	}

	if(str.indexOf(at,(lat + 1)) != -1){
		return false;
	}

	if(str.substring(lat - 1,lat) == dot || str.substring(lat + 1, lat + 2) == dot){
		return false;
	}

	if(str.indexOf(dot, (lat + 2)) == -1){
		return false;
	}
	
	if(str.indexOf(' ') != -1){
		return false;
	}

	return true;				
}