//Filtragem SQL
	function filtrar ($dados)
	{
		$d = addslashes($dados);
		$a = array("'" , "`" , "*", "%");
		$d = str_replace($a, "", $d);
		$d = preg_replace(sql_regcase("/(from|select|insert|delete|where|drop table|show tables|#|\*|--|\\\\)/"), "", $d);
		$d = strip_tags($d);
		return $d;
	}
	
	
	var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i

	function checkmail(e){
	var returnval=emailfilter.test(e.value)
	if (returnval==false){
	alert("Please enter a valid email address.")
	e.select()
	}
	return returnval
	}