//Javascript Document

function validate_form()
{
	//Name validation
	if(document.requestedform.name.value == null || document.requestedform.name.value == "")
	{
		alert("Please type in your full name.");
		return false;
	}
	
	//Email validation
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	
	if(document.requestedform.email.value == null || document.requestedform.email.value == "")
	{
		alert("Please type in your email.");
		return false;
	}
	if(reg.test(document.requestedform.email.value) == false)
	{
		alert("Invalid email.  Please re-enter your valid email.");
		return false;
	}
	
	//Phone validation
	var digits = "0123456789";
	// non-digit characters which are allowed in phone numbers
	var phoneNumberDelimiters = "()- ";
	// characters which are allowed in international phone numbers
	// (a leading + is OK)
	var validWorldPhoneChars = phoneNumberDelimiters + "+";
	// Minimum no of digits in an international phone no.
	var minDigitsInIPhoneNumber = 10;
	
	function isInteger(s)
	{   var i;
		for (i = 0; i < s.length; i++)
		{   
			// Check that current character is number.
			var c = s.charAt(i);
			if (((c < "0") || (c > "9"))) return false;
		}
		// All characters are numbers.
		return true;
	}
	
	function stripCharsInBag(s, bag)
	{   var i;
		var returnString = "";
		// Search through string's characters one by one.
		// If character is not in bag, append to returnString.
		for (i = 0; i < s.length; i++)
		{   
			// Check that current character isn't whitespace.
			var c = s.charAt(i);
			if (bag.indexOf(c) == -1) returnString += c;
		}
		return returnString;
	}
	
	function checkInternationalPhone(strPhone){
	s=stripCharsInBag(strPhone,validWorldPhoneChars);
	return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
	}
	
	if ((document.requestedform.phone.value == null)||(document.requestedform.phone.value == ""))
	{
		//alert("Please enter your phone number.")
		//document.requestedform.phone.value.focus()
		return true;
	}
	if (checkInternationalPhone(document.requestedform.phone.value)==false){
		alert("Please enter your valid phone number.")
		//document.requestedform.phone.value = ""
		//document.requestedform.phone.value.focus()
		return false;
	}	
	
	//Comments validation
	if (document.requestedform.comments.value == "")
	{
		alert("Please input your questions, concerns or comments to help us know about our services or website.");
		return false;
	}
}

/*function submitForm() 
{
	//Change the form action to the real submission page
	document.getElementById('requestedform').action = "http://www.renew-wyo.com/feedback.php";
	//Submit the form
	document.getElementById('requestedform').submit();
}*/