var max=500;
var max2=3000;
var ancho=300;
contenido_textarea = "";

function progreso_tecla(obj) {
	
var progreso = document.getElementById("progreso");
if (obj.value.length <= max) {
progreso.style.backgroundColor = "#FFFFFF";
progreso.style.backgroundImage = "url(../images/textarea.png)";
progreso.style.color = "#000000";
var pos = ancho-parseInt((ancho*parseInt(obj.value.length))/500);
progreso.style.backgroundPosition = "-"+pos+"px 0px";
} else {
progreso.style.backgroundColor = "#CC0000";
progreso.style.backgroundImage = "url()";
progreso.style.color = "#FFFFFF";
}
progreso.innerHTML = "("+obj.value.length+" / "+max+")";
}

function progreso_tecla2(obj) {
	
var progreso = document.getElementById("progreso2");
if (obj.value.length <= max2) {
progreso.style.backgroundColor = "#FFFFFF";
progreso.style.backgroundImage = "url(../images/textarea.png)";
progreso.style.color = "#000000";
var pos = ancho-parseInt((ancho*parseInt(obj.value.length))/3000);
progreso.style.backgroundPosition = "-"+pos+"px 0px";
} else {
progreso.style.backgroundColor = "#CC0000";
progreso.style.backgroundImage = "url()";
progreso.style.color = "#FFFFFF";
}
progreso.innerHTML = "("+obj.value.length+" / "+max2+")";
}

function valida_longitud(){
	
   num_caracteres = document.forms[0].entrada.value.length
   
   if (num_caracteres >= max){
      document.forms[0].entrada.value = contenido_textarea
   }else{
      contenido_textarea = document.forms[0].entrada.value
   }
}

function valida_longitud2(){
	
   num_caracteres = document.forms[0].cuerpo.value.length

   if (num_caracteres >= max2){
      document.forms[0].cuerpo.value = contenido_textarea
   }else{
      contenido_textarea = document.forms[0].cuerpo.value
   }
}