var Site = {
	
	start: function(){
		
		if ($('mainForm')) Site.checkForm();
		
	},
	
	checkForm: function() {
		$('mainForm').addEvent('submit', function(event) {
			Site.submitButton('disable');
			
			// check the form
			// if ($('firstName').value=="" || $('lastName').value=="" || $('company').value=="" || $('email').value=="" || $('phone').value=="") {
			// 				alert("'First Name', 'Last Name', 'Company', 'Email' and 'Phone' are required fields. Please fill them in before submitting.");
			// 				event.stop();
			// 			}
			if ($('Name').value=="" || $('Email').value=="") {
				alert("'Name' and 'Email' are required. Please fill them in before submitting.");
				event.stop();
			}
			
			Site.submitButton();
		});		
	},
	
	submitButton: function(state) {
		if (state == 'disable') {
			$('submit').value = "Submitting. Please wait...";
			$('submit').disabled = true;
		} else {
			$('submit').value = "Submit Form";
			$('submit').disabled = false;
		}
	}
	
};

window.onload = Site.start;