function check_search() {
	if ((form_get_value('search','search_string')==false) || (form_check_special_characters('search','search_string',0)==false)){
		alert("Enter some search text in the field provided. Only alphanumerical characters are allowed.");
		set_focus('search','search_string'); }
	else
		document.search.submit();
}

function check_search_normal() {
	if ((form_get_value('search_normal','search_string')==false) || (form_check_special_characters('search','search_string',0)==false)){
		alert("Enter some search text in the field provided. Only alphanumerical characters are allowed.");
		set_focus('search_normal','search_string'); }
	else
		document.search_normal.submit();
}