//var gcActBut = "";
//var gcActFrm = "";
//var gcActDir = "";
//var gcOvrBut = "";
//var gcOvrFrm = "";


var gcActBut = new Array("","","","","","","","","","","","","","","","","","","","");
var gcActFrm = new Array("","","","","","","","","","","","","","","","","","","","");
var gcActDir = new Array("","","","","","","","","","","","","","","","","","","","");
var gcActLay = new Array("","","","","","","","","","","","","","","","","","","","");

var gcOvrBut = new Array("","","","","","","","","","","","","","","","","","","","");
var gcOvrFrm = new Array("","","","","","","","","","","","","","","","","","","","");
var gcOvrLay = new Array("","","","","","","","","","","","","","","","","","","","");

var gcDefFrm = new Array("","","","","","","","","","","","","","","","","","","","");
var gcDefLay = new Array("","","","","","","","","","","","","","","","","","","","");
var gcDefBut = new Array("","","","","","","","","","","","","","","","","","","","");
var gcDefDir = new Array("","","","","","","","","","","","","","","","","","","","");
var gcDefEve = new Array("","","","","","","","","","","","","","","","","","","","");

//var gcButtonHome = "buttons";


//****************************************************************************//
function DeferButton(nSet,cFrame,cLayer,cButton,cDir,cEvent)
//****************************************************************************//
// Used to setup button data to be triggered by some future event             //
// Used mainly to change buttons when button frames change                    //
// In that case, the button is flushed by an onLoad from the frameset as the  //
// frameset onLoad is triggered after all frame onLoads have completed        //
//****************************************************************************//
{
	gcDefFrm[nSet] = cFrame;
	gcDefLay[nSet] = cLayer;
	gcDefBut[nSet] = cButton;
	gcDefDir[nSet] = cDir;
	gcDefEve[nSet] = cEvent;
	
//	alert('defer '+gcDefFrm[nSet]+'/'+gcDefBut[nSet]+'/'+gcDefDir[nSet]+'/'+gcDefEve[nSet]);

}

//****************************************************************************//
function FlushButton(nSet)
//****************************************************************************//
{
	if (gcDefFrm[nSet] == "")
		return;

	SetButton(nSet, gcDefFrm[nSet], gcDefLay[nSet], gcDefBut[nSet], gcDefDir[nSet], gcDefEve[nSet]);
	
	gcDefFrm[nSet] = "";
	gcDefBut[nSet] = "";
	gcDefDir[nSet] = "";
	gcDefEve[nSet] = "";
}


//****************************************************************************//
function ForceButton(nSet,cFrame,cLayer,cButton,cDir,cEvent)
//****************************************************************************//
{
	gcActDir[nSet] = "";
	gcActBut[nSet] = "";
	SetButton(nSet,cFrame,cLayer,cButton,cDir,cEvent);
//	 	alert("FORCE "+nSet+" "+cFrame+" "+cLayer+" "+cButton+" "+cDir+" "+cEvent);
}


//****************************************************************************//
function SetButton(nSet,cFrame,cLayer,cButton,cDir,cEvent)
//****************************************************************************//
//
// nSet - Allows you to maintain multiple sets of buttons simultaneously and independently
// cFrame - Allows you to target buttons in different frames - useful as this js is usually in index.html for global variable reasons
// cLayer - allows you to address buttons in different layers - useful for pull down or sliding menus
// cDir - The directory where the button images can be found
// cEvent - The event that is occuring (D)own, (O)ver, (U)p, ou(T)
//


{
   	var cUp;
   	var cDn;
   	var cOv;
   	var cOu;
   	var xSrc;
 
	var cNewButton = "";
	var cOldButton = "";
	
	//cButton = cButton + '.gif';
	
 	//alert(nSet+" "+cFrame+" "+cLayer+" "+cButton+" "+cDir+" "+cEvent);

   	// If same button pushed, do nothing //

	if (cButton == gcActBut[nSet])
		return;

	// Setup path to new button //

	
	if (cFrame != "") cNewButton = cFrame + '.';
	if (cLayer != "") cNewButton = cNewButton + 'document.all["'+cLayer+'"].';
	cNewButton = cNewButton + 'document.images["'+cButton+'"]';
	
	//alert(cNewButton);
	
	// Setup path to old botton //
	
	if (gcActBut[nSet] != "")  {
		if (gcActFrm[nSet] != "") cOldButton = gcActFrm[nSet]+'.';
		if (gcActLay[nSet] != "") cOldButton = cOldButton + 'document.all["'+gcActLay[nSet]+'"].';
		cOldButton = cOldButton + 'document.images["'+gcActBut[nSet]+'"]';
	}

	//alert(cOldButton);
	   
	xNewButton = eval(cNewButton);
			
	if (gcActBut[nSet] != "") 
		xOldButton = eval(cOldButton);

	   
   cUp = gcActDir[nSet] + "/bu-" + gcActBut[nSet]+".gif";
   cDn = cDir + "/bd-" + cButton+".gif";
   cOv = cDir + "/bo-" + cButton+".gif";
   cOu = cDir + "/bu-" + cButton+".gif";
       
   switch (cEvent) {
      case 'O':
	   //	alert(nSet+" "+cFrame+" "+cLayer+" "+cButton+" "+cDir+" "+cEvent);
         if (cButton != gcActBut[nSet]) { 
            xSrc = xNewButton; //eval(cFrame +'.document.images["'+cButton+'"]');
            xSrc.src = cOv;
    
            gcOvrBut[nSet] = cButton;
            gcOvrFrm[nSet] = cFrame;
			gcOvrLay[nSet] = cLayer;
			gcActDir[nSet] = cDir;
         }
         break;
		 
		 
      case 'D':
        if (gcActBut[nSet] != "") {
           xSrc = xOldButton; //eval(gcActFrm[nSet]+'.document.images["'+gcActBut[nSet]+'"]');
           xSrc.src = cUp;
        }
		
		xSrc = xNewButton; //eval(cFrame+'.document.images["'+cButton+'"]');	
        xSrc.src = cDn;
        gcActBut[nSet] = cButton;
        gcActFrm[nSet] = cFrame;
		gcActLay[nSet] = cLayer;
		gcActDir[nSet] = cDir;
        break;

      case 'T':
         if (gcOvrBut[nSet] == cButton) {
            xSrc = xNewButton; //eval(cFrame+'.document.images["'+cButton+'"]');
            xSrc.src = cOu;    
        
            gcOvrBut[nSet] = "";
            gcOvrFrm[nSet] = "";
			gcOvrLay[nSet] = "";
			gcActDir[nSet] = "";
         }
         break;
		   
      case 'U':
		xSrc = xNewButton; //eval(cFrame+'.document.images["'+cButton+'"]');
		xSrc.src = cOv;    
		
		gcActBut[nSet] = "";
		gcActFrm[nSet] = "";
		gcActLay[nSet] = "";
		gcActDir[nSet] = "";
		break;
        
        
      case 'C':
		SetButton(nSet,cFrame,cLayer,cButton,cDir,'D');
		SetButton(nSet,cFrame,cLayer,cButton,cDir,'U');
		
		gcActBut[nSet] = "";
		gcActFrm[nSet] = "";
		gcActLay[nSet] = "";
		gcActDir[nSet] = "";
		break;
   }
}