// ---------------------------------------------------------------------- // Copyright 2006 by Prophet. All rights reserved. // Revision 1.0 (March 2006) // ---------------------------------------------------------------------- var Global = {}; // ---------------------------------------------------------------------- // Helper to add multiple onload events to the document. // See // ---------------------------------------------------------------------- function add_onload_event (fnc) { if (typeof window.addEventListener != "undefined") { window.addEventListener("load", fnc, false); } else if (typeof window.attachEvent != "undefined") { window.attachEvent("onload", fnc); } else { if (window.onload != null) { var oldOnload = window.onload; window.onload = function (e) { oldOnload(e); window[fnc](); } } else { window.onload = fnc; } } } // ---------------------------------------------------------------------- // Handler for "standard" forms to check for required field entries. // ---------------------------------------------------------------------- function check_standard_form (form) { var message = ""; var labels = form.getElementsByTagName("LABEL"); for (var i=0; i elements to simulate :hover with a CSS class. Note that // this function uses Prototype to do the class addition/removal. // ---------------------------------------------------------------------- function init_nav_hover () { var nav = $("nav"); if (! nav) { return; } var elems = nav.getElementsByTagName("LI"); for (var i=0; i ID // and a corresponding tag in the side navigation column. If found, // change its class so it will appear to be the "active" page/link. // ---------------------------------------------------------------------- function init_sidenav_link () { var page_id = document.body.getAttribute("id"); if (! page_id) return; var the_link = $("link_"+page_id); if (! the_link) return; Element.addClassName(the_link, "currpage"); } add_onload_event(init_sidenav_link); // ---------------------------------------------------------------------- // Convenience function for opening a basic popup window. // ---------------------------------------------------------------------- function popup (url, width, height, extra) { var spec = 'width='+width+',height='+height+',status,resizable'; if (extra) { spec += ',' + extra; } var w = window.open(url, 'thepopup', spec); if (w) { w.focus(); } return w; } // ---------------------------------------------------------------------- // Helpers for pseudo-pulldown menus based on CSS and JavaScript. // ---------------------------------------------------------------------- function pulldown_toggle (name) { if (Global.pulldown && Global.pulldown != name) { pulldown_toggle(Global.pulldown); } var div = $(name); var new_visibility = div.style.visibility == "visible" ? "hidden" : "visible"; div.style.visibility = new_visibility; if (new_visibility == "visible") { Global.pulldown = name; Event.observe(document.body, "click", pulldown_click_event, true); } else { Global.pulldown = ""; Event.stopObserving(document.body, "click", pulldown_click_event, true); } } function pulldown_click_event (e) { // only toggle the pulldown if user clicked outside the pulldown AND its picker if (Global.pulldown && ! Position.within($(Global.pulldown), Event.pointerX(e), Event.pointerY(e)) && ! Position.within($(Global.pulldown+"_picker"), Event.pointerX(e), Event.pointerY(e))) { pulldown_toggle(Global.pulldown); } } // ---------------------------------------------------------------------- // Handler for the onfocus event of the search text field. // ---------------------------------------------------------------------- function search_focus (obj) { if (obj.value == "Search") { obj.value = ""; } obj.select(); return true; } // ---------------------------------------------------------------------- // Handler for the onsubmit event of the search form. // ---------------------------------------------------------------------- function search_submit (form) { if (form.words.value == "Search") { form.words.value = ""; } if (form.words.value == "") { alert("Please enter a word or phrase to search for."); return false; } return true; } // ---------------------------------------------------------------------- // Utility function to set the selected option in a select list. Right // now it only works with single-select lists. // ---------------------------------------------------------------------- function set_selected_option (select_list_id, option_value) { var s = $(select_list_id); if (s) { for (var i=0; i