function hide_info(help) {
	help = document.getElementById(help);
	help.style.display='none';
}

function show_info( help )
{
	id = help;
	help = document.getElementById(help);
	help.style.display='inline';
	help.style.left = document.getElementById(id).style.left;
	help.style.top = document.getElementById(id).style.top;

}