function set_html_body_value() {
	var html_body_value = document.body.innerHTML;
	var search_keyword = document.site_search.search_keyword.value;
	
	if(!search_keyword) {
		alert('Search text empty!');
		return false;
	} else {
		document.getElementById("html_body").value = html_body_value;
		document.site_search.submit();
		return true;
	}
}