function hide_visit(elm) {
	//document.hide_wrapper.style.visibility = 'hidden';
	document.title = " ";
	if (document.all)
		document.all[elm].style.visibility = 'hidden';
	if (document.layers)
		document.layers[elm].visibility = 'hide';
	if (document.getElementById)
		document.getElementById(elm).style.visibility = 'hidden';
}