/* Open and close an optional portion of the page. @param div_id string The ID of the

to open or close. @param marker_id string The ID of the to change. (Shows whether it's opened or closed.) @param marker_opened_url string The URL of the image to display when the section is opened. @param marker_closed_url string The URL of the image to display when the section is closed. @return null. */ function dropDownText(div_id, marker_id, marker_opened_url, marker_closed_url) { var divElement = document.getElementById(div_id); if (divElement.style.display == "block") { divElement.style.display = "none"; document.getElementById(marker_id).src = marker_closed_url; } else { divElement.style.display = "block"; document.getElementById(marker_id).src = marker_opened_url; } } /* Place the cursor in the (default) edit text box of one of the search forms. To make this work: 1. The text form element must be assigned the ID: default_select 2. The function must be invoked: */ function selectDefaultText() { // select (place the cursor in) the form input text element var elem = document.getElementById("default_select"); if (elem) { elem.select(); } } function getTarget(evt) { //equalize IE & W3C event models (see Cookbook p. 227) evt = (evt) ? evt : event; //get elem receiving event in model-independent way (see JavaScript & DHTML Cookbook p. 239) var target = (evt.target) ? evt.target : evt.srcElement; return target; }