// Sitio Construido por Javier Alberto Cruz Bustos (jcjavier@hotmail.com)
function jc() {
	rx = new RegExp("^[\\w\.=-]+@[\\w\\.-]+\\.[a-zA-Z]{2,4}$"); err = '';
	var email = document.getElementById('correo').value;
	if(email==''){err+='Por favor escriba un email valido.\n';}else{
	if(!rx.test(email)){err+='Por favor escriba un email valido:'+email+'\n';}}
	if(err==''){document.MM_returnValue = true;}else{alert(err);document.MM_returnValue = false;}
}
function notxt(e){ // onKeyPress="return notxt(event)"
	key=(document.all) ? e.keyCode : e.which; return ((key>47 && key<58) || key==0 || key==8);
}
function microtime(){var now = new Date().getTime()/1000;var s=parseInt(now);return s;}