function validRequired(formField,fieldLabel)
{
	var result = true;
	if (formField.value == "")
	{
		alert('Please enter a value for ' + fieldLabel +' field.');
		formField.focus();
		result = false;
	}
	return result;
}
function validEmail(eml)
{
	var breturn = false;
	var email = "";
	if ('string' == typeof(eml))
		email = eml;
	else
		email = eml.value;
	var lastDot = email.lastIndexOf('.');
	var at = email.indexOf('@');
	//not empty, @ is second or more character, something between @ and lastDot, dot is not last character
	if (email.length > 0 && at > 0 && at < lastDot-1 && lastDot < email.length-1 )
		breturn = true;
	else
	{
		alert ("Invalid email format. " + email);
		if ('object' == typeof(eml)) eml.focus();
	}
	return breturn;
}

//window.onload = rotateImage;
var img = new Array('images/homeimage.jpg','images/home1.jpg','images/homepage_3.jpg');
function rotateImage(i)
{
	if(i==undefined || i<0 || i>=img.length) i=0;
	document.getElementById("imgRotate").src = img[i];
	setTimeout("rotateImage(" + ++i + ")",5000);
}