function doValidate(){
	z = getObjByName('firstname');
	if(z.value == ''){
		alert('Please supply your first name');
		focusTB('firstname');
		return false;
	} 
	z = getObjByName('lastname');
	if(z.value == ''){
		alert('Please supply your last name');
		focusTB('lastname');
		return false;
	} 
	z = getObjByName('email');
	if(z.value == ''){
		alert('Please supply an email address so your can be contacted');
		focusTB('email');
		return false;
	} 
	re = new RegExp('^([a-z0-9_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,4}$');
	if(z.value.search(re)){
		alert('Your email address does not seem to be valid...please check it (AOL users please remember to put @aol.com at the end of your screen name)');
		focusTB('email');
		return false;
	}	
	return true;
}