function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		coachs_03_over = newImage("images/coachs_03-over.gif");
		coachs_04_over = newImage("images/coachs_04-over.gif");
		coachs_05_over = newImage("images/coachs_05-over.gif");
		coachs_06_over = newImage("images/coachs_06-over.gif");
		coachs_07_over = newImage("images/coachs_07-over.gif");
		preloadFlag = true;
	}
}

function isValidEmail(strEmail) 
{
	validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
//strEmail = document.form1.email.value;

	if (strEmail.search(validRegExp) == -1) 
	{
	return false;
	}
}

function submitForm() {
	if (isValidEmail(window.document.form1.email.value) == false){
		alert('Missing/Invalid Required Field - E-mail Address');
		return false;
	}
	else {
		return true;
	}
}