function isEmail2(email){
	if (email.value.search(/^\w+((-\w+)|(\.\w+))*\@\w+((\.|-)\w+)*\.\w+$/) == -1){
		alert("Preencha corretamente o seu e-mail!");
		email.focus();
		return false;
	}else{
		return true;
	}
}


function limpa_bt(){
	if(document.getElementById('mail')){
		var tx=document.getElementById('mail');
		if (tx.value=="seu e-mail aqui"){
			tx.value="";
		}
	}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}