var catalog_search_value = "Hledání v katalogu";

function get_search_form()
{
	return(document.forms["kendall_search"]);
}

function init_search_clear()
{
	form = get_search_form();
	if (form["catalog_search"].value == catalog_search_value)
		form["catalog_search"].value = "";
	}

function init_search_form()
{
	form = get_search_form();
	if (form["catalog_search"].value == "")	{
		form["catalog_search"].value = catalog_search_value;
	}
}

function check_search_form()
{
	form = get_search_form(); 
	if (!(retval = !((value = form["catalog_search"].value) == catalog_search_value || value == "")))
		alert ("Pro vyhledávání musíte zadat nějaký text!");
	return retval;
}