/************************************************************************/
var fadeCount = 0;
var fadeStep = 0.1;
var fadeStepNow;
/************************************************************************/
//fade action
function fadeAction(id){
  if(fadeCount == 1){
    return;
  }
  if((fadeCount += fadeStepNow) > 1){
    fadeCount = 1;
  }
  fadeStepNow *= 1.2;
	//document.all(id).style.filters.alpha.opacity ="alpha(opacity=" + fadeCount + ")";
  var ua = navigator.userAgent;
	if(document.layers ||
       ua.indexOf('Mac_PowerPC') !=-1 && document.all ||
       ua.indexOf('Safari') !=-1 ) {   //n4,mac-e4,mac-e5,s1
       return;
  } else if(document.all) { //win-e4,win-e5,win-e6
      document.all(id).style.filter="alpha(opacity=0)";
      document.all(id).filters.alpha.Opacity  = (fadeCount * 100);
  
  } else if(ua.indexOf('Gecko')!=-1) { //n6,n7,m1
      document.getElementById(id).style.MozOpacity = fadeCount;
  }
  setTimeout("fadeAction('" + id + "')",50);
}

//fade start
function fadeStart(id){
  fadeCount = 0 - fadeStep;
  fadeStepNow = fadeStep;
  fadeAction(id);
}