function showSearchTextbox() { 			
	if (document.getElementById) { // DOM3 = IE5, NS6 
		document.getElementById('divSearch').style.visibility = 'visible'; 
		document.getElementById('divSearch').style.display = 'inline'; 
	} else { 
		if (document.layers) { // Netscape 4 
			document.divSearch.visibility = 'visible'; 
		} else { // IE 4 
			document.all.divSearch.style.visibility = 'visible'; 
		} 
	}
	document.searchform.search_input.focus();
}