var soundjsflag = "true";



function setsound(){

	img = document.getElementById('sound').getElementsByTagName('img');

	if(soundjsflag == "false"){

		soundjsflag = "true";

		img[0].src = "img/top/b_soundoff.gif";

	}

	else{

		soundjsflag = "false";

		img[0].src = "img/top/b_silenceoff.gif";

	}

	window.document.BLANCO.SetVariable("soundflag", soundjsflag);

	//alert("set : "+soundjsflag);

	setCookie("sound",soundjsflag,7);

	//var getvalue = getCookie("sound");

	//alert("get : "+getvalue);

};



function changeimgin_itialize(){

	img = document.getElementById('sound').getElementsByTagName('img');

	if(soundjsflag == "false"){

		img[0].src = "img/top/b_silenceoff.gif";

	}

	else{

		img[0].src = "img/top/b_soundoff.gif";

	}

};



function changeimg(){

	img = document.getElementById('sound').getElementsByTagName('img');

	img[0].onmouseover = function(){

		if(soundjsflag == "false"){

			img[0].src = "img/top/b_soundover.gif";

		}

		else{

			img[0].src = "img/top/b_silenceover.gif";

		}

	}

	img[0].onmouseout = function(){

		if(soundjsflag == "false"){

			img[0].src = "img/top/b_silenceoff.gif";

		}

		else{

			img[0].src = "img/top/b_soundoff.gif";

		}

	}

};





function rechangeimg(){

	img = document.getElementById('sound').getElementsByTagName('img');

	if(soundjsflag == "false"){

		img[0].src = "img/top/b_soundoff.gif";

	}

	else{

		img[0].src = "img/top/b_silenceoff.gif";

	}

};



function soundinitialize(){

	soundjsflag = String(getCookie("sound"));

	window.document.BLANCO.SetVariable("soundflag", soundjsflag);

	//BLANCO.SetVariable("soundflag", soundjsflag);



};



function setCookie(myCookie,myValue,mySpanDay){

   myExp = new Date();

   myExp.setTime(myExp.getTime()+(mySpanDay*24*60*60*1000));

   myItem = "@" + myCookie + "=" + myValue + ";";

   myExpires = "expires="+myExp.toGMTString();

   //document.cookie =  myItem;

   document.cookie =  myItem + myExpires;

};



function getCookie(myCookie){

   myCookie = "@" + myCookie + "=";

   myValue = null;

   myStr = document.cookie + ";" ;

   myOfst = myStr.indexOf(myCookie);

   if (myOfst != -1){

      myStart = myOfst + myCookie.length;

      myEnd   = myStr.indexOf(";" , myStart);

      myValue = unescape(myStr.substring(myStart,myEnd));

   }

   return myValue;

};