function ClearInputBox(i,default_text) {
	if ( i.value == default_text ) {
		//alert ('its '+default_text);
		i.value = '';
		i.style.color = "#000000";
	}
}
	
function SetInputBox(i,default_text) {
	if ( i.value == '' ) {
		i.value = default_text;
		i.style.color = "#999999";
	}
}

function is_email(email) {
	var at = email.indexOf("@");
	var len = email.length;
	
	if ( at < 0 ) return false;
	// ---@123 (at the very least)
	if ( at + 3 > len ) return false
	
	return true;
}