var flag_396=false;
		
	var flag_417=false;
		
	var flag_528=false;
		
	var flag_639=false;
		
	var flag_741=false;
		
	var flag_852=false;
	


var bwave_1 = 8;
var jsVolume  = 0.08;
var flg_bgSound = false;

var oscillatorR ,  oscillatorL;
var context = new AudioContext();



function switchFQ ( freq, mode ) {

	
	if ( freq == 396 ) {
		if ( mode == 1 ) {
			if ( flag_396 == true ) { 
			}else  {
				$("#on396" ).addClass   ("active");
				$("#off396").removeClass("active");
				flag_396=true;
				soundStart396( );
			}
		}else {
			$("#on396" ).removeClass("active");
			$("#off396").addClass   ("active");
			flag_396=false;
			soundStop396();
		}
	}
		
	if ( freq == 417 ) {
		if ( mode == 1 ) {
			if ( flag_417 == true ) { 
			}else  {
				$("#on417" ).addClass   ("active");
				$("#off417").removeClass("active");
				flag_417=true;
				soundStart417( );
			}
		}else {
			$("#on417" ).removeClass("active");
			$("#off417").addClass   ("active");
			flag_417=false;
			soundStop417();
		}
	}
		
	if ( freq == 528 ) {
		if ( mode == 1 ) {
			if ( flag_528 == true ) { 
			}else  {
				$("#on528" ).addClass   ("active");
				$("#off528").removeClass("active");
				flag_528=true;
				soundStart528( );
			}
		}else {
			$("#on528" ).removeClass("active");
			$("#off528").addClass   ("active");
			flag_528=false;
			soundStop528();
		}
	}
		
	if ( freq == 639 ) {
		if ( mode == 1 ) {
			if ( flag_639 == true ) { 
			}else  {
				$("#on639" ).addClass   ("active");
				$("#off639").removeClass("active");
				flag_639=true;
				soundStart639( );
			}
		}else {
			$("#on639" ).removeClass("active");
			$("#off639").addClass   ("active");
			flag_639=false;
			soundStop639();
		}
	}
		
	if ( freq == 741 ) {
		if ( mode == 1 ) {
			if ( flag_741 == true ) { 
			}else  {
				$("#on741" ).addClass   ("active");
				$("#off741").removeClass("active");
				flag_741=true;
				soundStart741( );
			}
		}else {
			$("#on741" ).removeClass("active");
			$("#off741").addClass   ("active");
			flag_741=false;
			soundStop741();
		}
	}
		
	if ( freq == 852 ) {
		if ( mode == 1 ) {
			if ( flag_852 == true ) { 
			}else  {
				$("#on852" ).addClass   ("active");
				$("#off852").removeClass("active");
				flag_852=true;
				soundStart852( );
			}
		}else {
			$("#on852" ).removeClass("active");
			$("#off852").addClass   ("active");
			flag_852=false;
			soundStop852();
		}
	}
	
}//function switchFQ




	




	
function soundStart396( ) {
		
	
	window.AudioContext = window.AudioContext || window.webkitAudioContext;
	flg_396 = true;
	sfreq_1 = 396;
	
	//------------------------------------------------------Define R
	//Create the instance of oscillatorRNode
	var oscillatorR = context.createOscillator();
	//Set parameters
	oscillatorR.type = 'sine' ;  
	oscillatorR.frequency.value = sfreq_1 - bwave_1/2 ;  // Hz
	oscillatorR.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorR.start = oscillatorR.start || oscillatorR.noteOn;
	oscillatorR.stop  = oscillatorR.stop  || oscillatorR.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeR = context.createGain();
	gainNodeR.gain.value = jsVolume ;
	//PAN
	var pannerR = context.createPanner(); 
	pannerR.setPosition(-1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorR.connect(gainNodeR);
	gainNodeR.connect(pannerR);
	pannerR.connect(context.destination);
	
	//------------------------------------------------------Define L
	//Create the instance of oscillatorRNode
	var oscillatorL = context.createOscillator();
	//Set parameters
	oscillatorL.type = 'sine' ;  
	oscillatorL.frequency.value = sfreq_1 + bwave_1/2 ;  // Hz
	oscillatorL.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorL.start = oscillatorL.start || oscillatorL.noteOn;
	oscillatorL.stop  = oscillatorL.stop  || oscillatorL.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeL = context.createGain();
	gainNodeL.gain.value = jsVolume ;
	//PAN
	var pannerL = context.createPanner(); 
	pannerL.setPosition(1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorL.connect(gainNodeL);
	gainNodeL.connect(pannerL);
	pannerL.connect(context.destination);
	
	//ŠJŽn ------------------------------
		oscillatorR.start(0);
		oscillatorL.start(0);
	//’âŽ~ ------------------------------
		soundStop396 = function (  ) {
				flg_396 = false;
			    oscillatorR.stop(0);
			    oscillatorL.stop(0);
		}
	
	
}
soundStop396 = function (  ) {}

	
function soundStart417( ) {
		
	
	window.AudioContext = window.AudioContext || window.webkitAudioContext;
	flg_417 = true;
	sfreq_1 = 417;
	
	//------------------------------------------------------Define R
	//Create the instance of oscillatorRNode
	var oscillatorR = context.createOscillator();
	//Set parameters
	oscillatorR.type = 'sine' ;  
	oscillatorR.frequency.value = sfreq_1 - bwave_1/2 ;  // Hz
	oscillatorR.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorR.start = oscillatorR.start || oscillatorR.noteOn;
	oscillatorR.stop  = oscillatorR.stop  || oscillatorR.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeR = context.createGain();
	gainNodeR.gain.value = jsVolume ;
	//PAN
	var pannerR = context.createPanner(); 
	pannerR.setPosition(-1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorR.connect(gainNodeR);
	gainNodeR.connect(pannerR);
	pannerR.connect(context.destination);
	
	//------------------------------------------------------Define L
	//Create the instance of oscillatorRNode
	var oscillatorL = context.createOscillator();
	//Set parameters
	oscillatorL.type = 'sine' ;  
	oscillatorL.frequency.value = sfreq_1 + bwave_1/2 ;  // Hz
	oscillatorL.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorL.start = oscillatorL.start || oscillatorL.noteOn;
	oscillatorL.stop  = oscillatorL.stop  || oscillatorL.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeL = context.createGain();
	gainNodeL.gain.value = jsVolume ;
	//PAN
	var pannerL = context.createPanner(); 
	pannerL.setPosition(1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorL.connect(gainNodeL);
	gainNodeL.connect(pannerL);
	pannerL.connect(context.destination);
	
	//ŠJŽn ------------------------------
		oscillatorR.start(0);
		oscillatorL.start(0);
	//’âŽ~ ------------------------------
		soundStop417 = function (  ) {
				flg_417 = false;
			    oscillatorR.stop(0);
			    oscillatorL.stop(0);
		}
	
	
}
soundStop417 = function (  ) {}

	
function soundStart528( ) {
		
	
	window.AudioContext = window.AudioContext || window.webkitAudioContext;
	flg_528 = true;
	sfreq_1 = 528;
	
	//------------------------------------------------------Define R
	//Create the instance of oscillatorRNode
	var oscillatorR = context.createOscillator();
	//Set parameters
	oscillatorR.type = 'sine' ;  
	oscillatorR.frequency.value = sfreq_1 - bwave_1/2 ;  // Hz
	oscillatorR.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorR.start = oscillatorR.start || oscillatorR.noteOn;
	oscillatorR.stop  = oscillatorR.stop  || oscillatorR.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeR = context.createGain();
	gainNodeR.gain.value = jsVolume ;
	//PAN
	var pannerR = context.createPanner(); 
	pannerR.setPosition(-1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorR.connect(gainNodeR);
	gainNodeR.connect(pannerR);
	pannerR.connect(context.destination);
	
	//------------------------------------------------------Define L
	//Create the instance of oscillatorRNode
	var oscillatorL = context.createOscillator();
	//Set parameters
	oscillatorL.type = 'sine' ;  
	oscillatorL.frequency.value = sfreq_1 + bwave_1/2 ;  // Hz
	oscillatorL.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorL.start = oscillatorL.start || oscillatorL.noteOn;
	oscillatorL.stop  = oscillatorL.stop  || oscillatorL.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeL = context.createGain();
	gainNodeL.gain.value = jsVolume ;
	//PAN
	var pannerL = context.createPanner(); 
	pannerL.setPosition(1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorL.connect(gainNodeL);
	gainNodeL.connect(pannerL);
	pannerL.connect(context.destination);
	
	//ŠJŽn ------------------------------
		oscillatorR.start(0);
		oscillatorL.start(0);
	//’âŽ~ ------------------------------
		soundStop528 = function (  ) {
				flg_528 = false;
			    oscillatorR.stop(0);
			    oscillatorL.stop(0);
		}
	
	
}
soundStop528 = function (  ) {}

	
function soundStart639( ) {
		
	
	window.AudioContext = window.AudioContext || window.webkitAudioContext;
	flg_639 = true;
	sfreq_1 = 639;
	
	//------------------------------------------------------Define R
	//Create the instance of oscillatorRNode
	var oscillatorR = context.createOscillator();
	//Set parameters
	oscillatorR.type = 'sine' ;  
	oscillatorR.frequency.value = sfreq_1 - bwave_1/2 ;  // Hz
	oscillatorR.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorR.start = oscillatorR.start || oscillatorR.noteOn;
	oscillatorR.stop  = oscillatorR.stop  || oscillatorR.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeR = context.createGain();
	gainNodeR.gain.value = jsVolume ;
	//PAN
	var pannerR = context.createPanner(); 
	pannerR.setPosition(-1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorR.connect(gainNodeR);
	gainNodeR.connect(pannerR);
	pannerR.connect(context.destination);
	
	//------------------------------------------------------Define L
	//Create the instance of oscillatorRNode
	var oscillatorL = context.createOscillator();
	//Set parameters
	oscillatorL.type = 'sine' ;  
	oscillatorL.frequency.value = sfreq_1 + bwave_1/2 ;  // Hz
	oscillatorL.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorL.start = oscillatorL.start || oscillatorL.noteOn;
	oscillatorL.stop  = oscillatorL.stop  || oscillatorL.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeL = context.createGain();
	gainNodeL.gain.value = jsVolume ;
	//PAN
	var pannerL = context.createPanner(); 
	pannerL.setPosition(1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorL.connect(gainNodeL);
	gainNodeL.connect(pannerL);
	pannerL.connect(context.destination);
	
	//ŠJŽn ------------------------------
		oscillatorR.start(0);
		oscillatorL.start(0);
	//’âŽ~ ------------------------------
		soundStop639 = function (  ) {
				flg_639 = false;
			    oscillatorR.stop(0);
			    oscillatorL.stop(0);
		}
	
	
}
soundStop639 = function (  ) {}

	
function soundStart741( ) {
		
	
	window.AudioContext = window.AudioContext || window.webkitAudioContext;
	flg_741 = true;
	sfreq_1 = 741;
	
	//------------------------------------------------------Define R
	//Create the instance of oscillatorRNode
	var oscillatorR = context.createOscillator();
	//Set parameters
	oscillatorR.type = 'sine' ;  
	oscillatorR.frequency.value = sfreq_1 - bwave_1/2 ;  // Hz
	oscillatorR.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorR.start = oscillatorR.start || oscillatorR.noteOn;
	oscillatorR.stop  = oscillatorR.stop  || oscillatorR.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeR = context.createGain();
	gainNodeR.gain.value = jsVolume ;
	//PAN
	var pannerR = context.createPanner(); 
	pannerR.setPosition(-1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorR.connect(gainNodeR);
	gainNodeR.connect(pannerR);
	pannerR.connect(context.destination);
	
	//------------------------------------------------------Define L
	//Create the instance of oscillatorRNode
	var oscillatorL = context.createOscillator();
	//Set parameters
	oscillatorL.type = 'sine' ;  
	oscillatorL.frequency.value = sfreq_1 + bwave_1/2 ;  // Hz
	oscillatorL.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorL.start = oscillatorL.start || oscillatorL.noteOn;
	oscillatorL.stop  = oscillatorL.stop  || oscillatorL.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeL = context.createGain();
	gainNodeL.gain.value = jsVolume ;
	//PAN
	var pannerL = context.createPanner(); 
	pannerL.setPosition(1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorL.connect(gainNodeL);
	gainNodeL.connect(pannerL);
	pannerL.connect(context.destination);
	
	//ŠJŽn ------------------------------
		oscillatorR.start(0);
		oscillatorL.start(0);
	//’âŽ~ ------------------------------
		soundStop741 = function (  ) {
				flg_741 = false;
			    oscillatorR.stop(0);
			    oscillatorL.stop(0);
		}
	
	
}
soundStop741 = function (  ) {}

	
function soundStart852( ) {
		
	
	window.AudioContext = window.AudioContext || window.webkitAudioContext;
	flg_852 = true;
	sfreq_1 = 852;
	
	//------------------------------------------------------Define R
	//Create the instance of oscillatorRNode
	var oscillatorR = context.createOscillator();
	//Set parameters
	oscillatorR.type = 'sine' ;  
	oscillatorR.frequency.value = sfreq_1 - bwave_1/2 ;  // Hz
	oscillatorR.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorR.start = oscillatorR.start || oscillatorR.noteOn;
	oscillatorR.stop  = oscillatorR.stop  || oscillatorR.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeR = context.createGain();
	gainNodeR.gain.value = jsVolume ;
	//PAN
	var pannerR = context.createPanner(); 
	pannerR.setPosition(-1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorR.connect(gainNodeR);
	gainNodeR.connect(pannerR);
	pannerR.connect(context.destination);
	
	//------------------------------------------------------Define L
	//Create the instance of oscillatorRNode
	var oscillatorL = context.createOscillator();
	//Set parameters
	oscillatorL.type = 'sine' ;  
	oscillatorL.frequency.value = sfreq_1 + bwave_1/2 ;  // Hz
	oscillatorL.detune.value    = 0;  //100 cent
	//for legacy browsers
	oscillatorL.start = oscillatorL.start || oscillatorL.noteOn;
	oscillatorL.stop  = oscillatorL.stop  || oscillatorL.noteOff;
	context.createGain = context.createGain || context.createGainNode;
	//Create the instance of GainNode
	var gainNodeL = context.createGain();
	gainNodeL.gain.value = jsVolume ;
	//PAN
	var pannerL = context.createPanner(); 
	pannerL.setPosition(1,0,0);
	//oscillatorRNode (input) -> GainNode -> AudioDestinationNode (output)
	oscillatorL.connect(gainNodeL);
	gainNodeL.connect(pannerL);
	pannerL.connect(context.destination);
	
	//ŠJŽn ------------------------------
		oscillatorR.start(0);
		oscillatorL.start(0);
	//’âŽ~ ------------------------------
		soundStop852 = function (  ) {
				flg_852 = false;
			    oscillatorR.stop(0);
			    oscillatorL.stop(0);
		}
	
	
}
soundStop852 = function (  ) {}









//$ary_freq = array(396,417,528,639,741,852);
	
function changeBwave(){
	
	soundStop852();
	soundStop741();
	soundStop639();
	soundStop528();
	soundStop417();
	soundStop396();

	bwave_1 = document.getElementById("selectBWave").options[document.getElementById("selectBWave").selectedIndex].value;
	
	if ( flag_852 ) { soundStart852(); }
	if ( flag_741 ) { soundStart741(); }
	if ( flag_639 ) { soundStart639(); }
	if ( flag_528 ) { soundStart528(); }
	if ( flag_417 ) { soundStart417(); }
	if ( flag_396 ) { soundStart396(); }
	
	
}
	



function allstop(  ) {
	
	switchFQ(396,0);
	switchFQ(417,0);
	switchFQ(528,0);
	switchFQ(639,0);
	switchFQ(741,0);
	switchFQ(852,0);
	
	document.getElementById("BgSound").selectedIndex = 0;
}