function twsn() {
	if($('.twsn').hasClass('hold')) {
		clearTimeout(d);
		$('.twsn').css('visibility','visible').css('opacity','1.0');
	}
	else {
		$('.ytsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.fbsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.scsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.twsn').addClass('hold').css('opacity',"0.0").css('visibility','visible').stop().animate({opacity: 1.0}, "slow");
	}
}
function fbsn() {
	if($('.fbsn').hasClass('hold')) {
		clearTimeout(d);
		$('.fbsn').css('visibility','visible').css('opacity','1.0');
	}
	else {
		$('.twsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.ytsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.scsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.fbsn').addClass('hold').css('opacity',"0.0").css('visibility','visible').stop().animate({opacity: 1.0}, "slow");
	}
}
function ytsn() {
	if($('.ytsn').hasClass('hold')) {
		clearTimeout(d);
		$('.ytsn').css('visibility','visible').css('opacity','1.0');
	}
	else {
		$('.twsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.fbsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.scsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.ytsn').addClass('hold').css('opacity',"0.0").css('visibility','visible').stop().animate({opacity: 1.0}, "slow");
	}
}
function scsn() {
	if($('.scsn').hasClass('hold')) {
		clearTimeout(d);
		$('.scsn').css('visibility','visible').css('opacity','1.0');
	}
	else {
		$('.twsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.fbsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.ytsn').removeClass('hold').css('visibility','hidden').stop().animate({opacity: 0.0}, "fast");
		$('.scsn').addClass('hold').css('opacity',"0.0").css('visibility','visible').stop().animate({opacity: 1.0}, "slow");
	}
}
function invisall2() {
	$('.twsn').stop().animate({opacity: 0.0}, "slow");
	$('.ytsn').stop().animate({opacity: 0.0}, "slow");
	$('.fbsn').stop().animate({opacity: 0.0}, "slow");
	$('.scsn').stop().animate({opacity: 0.0}, "slow");
}
function rotatesoc1() {
	d=setTimeout('invisall2();twsn();rotatesoc2()',15000);
}
function rotatesoc2() {
	d=setTimeout('invisall2();fbsn();rotatesoc3()',15000);
}
function rotatesoc3() {
	d=setTimeout('invisall2();ytsn();rotatesoc4()',15000);
}
function rotatesoc4() {
	d=setTimeout('invisall2();scsn();rotatesoc1()',15000);
}
function stoprotation() {
	clearTimeout(d);
}