///hacerle trim a los input

function valida_input(id_input){
	if (document.getElementById(id_input).value == ''){
		document.getElementById(id_input).style.borderColor = "#ff0000";
		document.getElementById(id_input).style.borderWidth = "2px";		
		document.getElementById("msj_"+id_input).style.display = "";
		document.getElementById("desc_"+id_input).style.color = "#ff0000";
		document.getElementById("desc_"+id_input).style.fontWeight = "bold";
		return false;
	
	}
	else {
		document.getElementById(id_input).style.borderColor = "";
		document.getElementById(id_input).style.borderWidth = "";
		document.getElementById("msj_"+id_input).style.display = "none";
		document.getElementById("desc_"+id_input).style.color = "";
		document.getElementById("desc_"+id_input).style.fontWeight = "";
		return true;
	}
}

function valida_email(id_input){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if ( (document.getElementById(id_input).value == '') || (!(document.getElementById(id_input).value.match(emailExp))) ){
		document.getElementById(id_input).style.borderColor = "#ff0000";
		document.getElementById(id_input).style.borderWidth = "2px";		
		document.getElementById("msj_"+id_input).style.display = "";
		document.getElementById("desc_"+id_input).style.color = "#ff0000";
		document.getElementById("desc_"+id_input).style.fontWeight = "bold";
		return false;
	
	}
	else {
		document.getElementById(id_input).style.borderColor = "";
		document.getElementById(id_input).style.borderWidth = "";
		document.getElementById("msj_"+id_input).style.display = "none";
		document.getElementById("desc_"+id_input).style.color = "";
		document.getElementById("desc_"+id_input).style.fontWeight = "";
		return true;
	}
}



function valida_contacto(){
	var resultado = 0;
	if (!(valida_input('nombre'))){
		resultado++;	
	}
	if (!(valida_email('email'))){
		resultado++;	
	}
	if (!(valida_input('contenido') )){
		resultado++;	
	}
	if ( resultado == 0) {
		document.form.submit();
	}
}