function validateForm(f) {
	valid = true;
	alertStr="";
	// validate first name length
	if (f.name.value.length < 1){
		alertStr = alertStr + 'Name is a required field.\r\n';
		valid = false;
	}else{
		
	}

	// validate phone length
	if (f.phone.value.length < 1){ 
		alertStr = alertStr + 'Phone is a required field.\r\n';
		valid = false;
	}
	
	// validate phone length
	if (f.email.value.length < 1){ 
		alertStr = alertStr + 'Email is a required field.\r\n';
		valid = false;
	}else{
		// validate email
		if (f.email.value.search("@") == -1 || f.email.value.search("[.*]") == -1){ 
			alertStr = alertStr + 'Email address is an invalid format.\r\n';
			valid = false;
		}


		// validate emailConf
		if (f.emailConf.value.search("@") == -1 || f.emailConf.value.search("[.*]") == -1){ 
			alertStr = alertStr + 'Email confirmation address is an invalid format.\r\n';
			valid = false;
		}


		if(f.email.value != f.emailConf.value){
			alertStr = alertStr + 'Email addresses do not match.\r\n';
			valid = false;
		}
	}
	
	if(valid == false){
		alert(alertStr);
	}
	return valid;
}