function gb_showhide(){

var i=1;
for (i=1;i<=7;i++)
	{
                currentDiv = "mp3playerSC" + i;
		obj = document.getElementById(currentDiv);

		if (obj.style.display == "none")
		{
		obj.style.display = "";
		} else {
		obj.style.display = "none";
		}
	}
}