function validar_submit(form) {
	if ((form.selCat.value == null) || (form.selCat.value=="")) {
	 alert("Please, Select a Category");
	 form.selCat.focus();
	 return false;
	}
	if ((form.url.value == null) || (form.url.value=="")) {
	 alert("Please, fill your url");
	 form.url.focus();
	 return false;
	}
	if ((form.title.value == null) || (form.title.value=="")) {
	 alert("Please, fill your title");
	 form.title.focus();
	 return false;
	}
	if ((form.description.value == null) || (form.description.value=="")) {
	 alert("Please, fill your description");
	 form.description.focus();
	 return false;
	}			
	if ((form.name.value == null) || (form.name.value=="")) {
	 alert("Please, fill your name");
	 form.name.focus();
	 return false;
	}			
	if ((form.mail.value == null) || (form.mail.value=="")) {
	 alert("Please, fill your EMail");
	 form.mail.focus();
	 return false;
	}	
	if ((form.captcha.value == null) || (form.captcha.value=="")) {
	 alert("Please, Fill your Result");
	 form.captcha.focus();
	 return false;
	}
	if ((form.cap.value != form.captcha.value)) {
	 alert("Please, Fill a correct Result");
	  form.captcha.focus();
	 return false;
	}
	
	if (form.mail.value.indexOf("@") != -1)
	 return true;
	 else {
	 alert('Please, you should to fill a valide email');
	  form.mail.focus();
	 return false;
	}
		
	return true;

}