//************************************
// Validacion de forma de comentarios 
// ***********************************
function comentarios_ver(form){

        var fieldnames = new Array (4)
		fieldnames[0] = "- Título"
		fieldnames[1] = "- Nombre"
        fieldnames[2] = "- Email"
		fieldnames[3] = "- Comentarios"

		var onoff=0
		var alertboxnames = ""
	
		var fields = new Array (4)
		fields[0] = form.titulo.value.length
		fields[1] = form.nombre.value.length
		fields[2] = form.email.value.length
		fields[3] = form.comentarios.value.length
	        
		for (var i=0; i < fields.length; i++) {
			if (fields[i] == 0) {
				alertboxnames = alertboxnames + fieldnames[i] + "\n ";
		    	onoff ++;
			}              
		}
		if(onoff == 0) {
			return true
		}else{
			if(onoff == 1){
				var catness = alertboxnames.substring (0, alertboxnames.indexOf("\n "));
				alert ("Por favor ingresa el siguiente dato: \r\r\n " + catness);
			}else{
				var catness = alertboxnames.substring (0, alertboxnames.length-2)
				alert("Por favor ingresa los siguientes datos: \r\r\n " + catness);
			}
			return false
		}
	}