function alphaRender(sender,alpha,sender2)
{
    if (sender.filters)
      sender.filters.alpha.opacity=alpha*100
    else
      sender.style.MozOpacity=alpha

    if (sender2!=null){
      if (sender2.filters)
        sender2.filters.alpha.opacity=alpha*100
      else
        sender2.style.MozOpacity=alpha      
    }
}

function changeTxtColor(fromId, color){

	var objFrom = document.getElementById ( fromId ) ;
	objFrom.color = color;
}

function changeArrow(fromId,img){
  
  var objFrom = document.getElementById ( fromId ) ;
  objFrom.src=img;

}