function togSHF(show, hide, focus) {
	var elements;
	var index;
	if(show != '') {
		elements = show.split(',');
		if(elements.length > 1) {
			for(index = 0; index < elements.length; index++) {
				document.getElementById(elements[index]).style.display='';
			}
		}
		else {
			document.getElementById(show).style.display='';
		}
	}
	if(hide != '') {
		elements = hide.split(',');
		if(elements.length > 1) {
			for(index = 0; index < elements.length; index++) {
				document.getElementById(elements[index]).style.display='none';
			}
		}
		else {
			document.getElementById(hide).style.display='none';
		}
	}
	if(focus == 'blur') {
		blur();
	}
	else if(focus != '') {
		document.getElementById(focus).focus();
	}
}