flag=0;

function effectAppear(container){
	if (flag==0){
		var effectOn = new Effect.Opacity(container,{ duration: 0.6, transition: Effect.Transitions.sinoidal , from: 0.0, to: 1.0,queue:"end"});
		flag=1;
		return false;
	}
	else{
		var effectOut = new Effect.Opacity(container,{ duration: 0.6, transition: Effect.Transitions.sinoidal , from: 1.0, to: 0.0,queue:"end"});
		flag=0;	
		return false;
	}
	
}