function hide_select() {
	for (var l=0;l<intranet_contents.document.forms.length;l++) {
		for (var m=0;m<intranet_contents.document.forms[l].elements.length;m++) {
			if (intranet_contents.document.forms[l].elements[m].type=='select-one') {
				intranet_contents.document.forms[l].elements[m].style.visibility='hidden';
			}
		}
	}
}

function show_select() {
	for (var l=0;l<intranet_contents.document.forms.length;l++) {
		for (var m=0;m<intranet_contents.document.forms[l].elements.length;m++) {
			if (intranet_contents.document.forms[l].elements[m].type=='select-one') {
				intranet_contents.document.forms[l].elements[m].style.visibility='visible';
			}
		}
	}
}