function isPhoneValid(field, type) {
	returnValue = true;
	var stripped = field.value.replace(/[\(\)\.\-\ ]/g, '');
	if (isNaN(stripped)) {
		returnValue = false;
		alert("The " + type + " contains illegal characters.");
		field.focus();
		field.select();
	}
	else if (stripped.length < 7) {
		returnValue = false;
		alert("The " + type + " is not a valid phone number");
		field.focus();
		field.select();
	}
	return returnValue;
}

function formatPhone(field, type) {
	if (field.value != "") {
		formattedString = "";
		if (isPhoneValid(field, type)) {
			phoneString = field.value.replace(/[\(\)\.\-\ ]/g, '');
			if (phoneString.length == 8) {
				firstString = phoneString.substring(0,4);
				secondString = phoneString.substring(4,8);
				formattedString = firstString + " " + secondString;
			}
			else if ((phoneString.length == 10) && (phoneString.substring(0,2) != "04")) {
				firstString = phoneString.substring(0,2);
				secondString = phoneString.substring(2,6);
				thirdString = phoneString.substring(6,10);
				formattedString = firstString + " " + secondString + " " + thirdString;
			}
			else if ((phoneString.length == 10) && (phoneString.substring(0,2) == "04")) {
				firstString = phoneString.substring(0,4);
				secondString = phoneString.substring(4,7);
				thirdString = phoneString.substring(7,10);
				formattedString = firstString + " " + secondString + " " + thirdString;
			}
			else if (phoneString.length == 11) {
				firstString = phoneString.substring(0,3);
				secondString = phoneString.substring(3,7);
				thirdString = phoneString.substring(7,11);
				formattedString = firstString + " " + secondString + " " + thirdString;			
			}
			if (formattedString != "") {
				field.value = formattedString;
			}
		}
	}
}

function formatMobile(field, type) {
	if (field.value != "") {
		phoneString = field.value.replace(/[\(\)\.\-\ ]/g, '');
		if (phoneString.length == 10) {
			if (isPhoneValid(field, type)) {
				firstString = phoneString.substring(0,4);
				secondString = phoneString.substring(4,7);
				thirdString = phoneString.substring(7,10);
				formattedString = firstString + " " + secondString + " " + thirdString;
				field.value = formattedString;
			}
		}
		else {
			returnValue = false;
			alert("The " + type + " is not a valid phone number");
			field.focus();
			field.select();	
		}
	}
}

function isValidEmail(field) {
	str = field.value
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
		alert("The email address entered is invalid")
		return false
	}
	else if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		alert("The email address entered is invalid")
		return false
	}
	else if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    alert("The email address entered is invalid")
	    return false
	}
	else if (str.indexOf(at,(lat+1))!=-1){
		alert("The email address entered is invalid")
	    return false
	}
	else if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("The email address entered is invalid")
	    return false
	}
	else if (str.indexOf(dot,(lat+2))==-1){
		alert("The email address entered is invalid")
	    return false
	}	
	else if (str.indexOf(" ")!=-1){
		alert("The email address entered is invalid")
	    return false
	}
	return true			
}

function checkEmail(field) {
	if (field.value != "") {
		if (!isValidEmail(field)) {
			//field.focus();
			//field.select();	
		}
	}	
}