function switchBlock(Id){
	blckId = Id;
	try {	if (document.getElementById(blckId).style.display == "none"){
		document.getElementById(blckId).style.display = "block";
		}else{
		document.getElementById(blckId).style.display = "none";
		}
	}
	catch(err){}
}
function switchBlocks(Id){
	for (var x=1; x <= 10; x++){
		blckId = Id + x;
		switchBlock( blckId );
	}
}