var noRepitAceptar = '0';

function aceptarNews() {
	if( noRepitAceptar == '1') {
		return;
	}
	if( document.newsform.mail.value == '') {
		alert ("Ingrese un mail");
		return;
	}
	noRepitAceptar = '1';
	alert("Gracias!");
	document.newsform.action = 'index.php';
	document.newsform.submit();
	document.newsform.action = 'javascript:aceptarNews();';
}


function stopPreloader() {
	document.getElementById("body").style.opacity = "100";
	document.getElementById("body").style.visibility = "visible";
	fade("preloader");
	fade("body");
}

var TimeToFade = 1000.0;

function fade(eid)
{
  var element = document.getElementById(eid);
  if(element == null)
    return;
   
  if(element.FadeState == null)
  {
    if(element.style.opacity == null 
        || element.style.opacity == '' 
        || element.style.opacity == '1')
    {
      element.FadeState = 2;
    }
    else
    {
      element.FadeState = -2;
    }
  }
    
  if(element.FadeState == 1 || element.FadeState == -1)
  {
    element.FadeState = element.FadeState == 1 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade - element.FadeTimeLeft;
  }
  else
  {
    element.FadeState = element.FadeState == 2 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade;
    setTimeout("animateFade(" + new Date().getTime() + ",'" + eid + "')", 33);
  }  
}

function animateFade(lastTick, eid)
{  
  var curTick = new Date().getTime();
  var elapsedTicks = curTick - lastTick;
  
  var element = document.getElementById(eid);
 
  if(element.FadeTimeLeft <= elapsedTicks)
  {
    element.style.opacity = element.FadeState == 1 ? '1' : '0';
    element.style.filter = 'alpha(opacity = ' 
        + (element.FadeState == 1 ? '100' : '0') + ')';
    element.FadeState = element.FadeState == 1 ? 2 : -2;
    if( element.FadeState == -2 ) 
    {
    	element.style.height = "1";
    	element.style.width = "1";
    	element.style.visible = "hidden";
    	element.style.zIndex = "-1";
    }
    if( element.FadeState == 2 ) 
    {
    	element.style.zIndex = "5";
    }
    return;
  }
 
  element.FadeTimeLeft -= elapsedTicks;
  var newOpVal = element.FadeTimeLeft/TimeToFade;
  if(element.FadeState == 1)
    newOpVal = 1 - newOpVal;

  element.style.opacity = newOpVal;
  element.style.filter = 'alpha(opacity = ' + (newOpVal*100) + ')';
  
  setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}

function SearchClear(defaultText)
{	
	var input = document.getElementById('searchfield');
	
	if (input.value == defaultText)
		input.value = "";
	else if (input.value == "")
		input.value = defaultText;
}