function effects(elements, css){
	
	var css			=	!css?'':css;
	var data		= 	elements.split("-");
	for( a = 0; a <= ( data.length - 1 ); a++ ){
		document.getElementById(data[a]).className 	= 	data[a] + css;
	}
}

function show (id){
	
	if(document.getElementById(id).style.display == "block"){
		document.getElementById(id).style.display = "none";
	}else{
		document.getElementById(id).style.display = "block";
	}
}