// Commonly-used functions, reduced. function d(s) {return document.getElementById(s);} function dE(o,s) {return o.getElementsByTagName(s);} /** * toggleDisplay() * * Will toggle the display property of the style object for any * DOM element or object that supports style as a property. * * Warning: This'll wreak havoc if applied to elements. Those * babies got different types "table-row" | "block" dependant on * what browser's being used. * * Warning: Written in Texas. Yeehaw. * * Typical usage: * toggleDisplay(document.getElementById("foo")); */ function toggleDisplay(o) { var display = getStyle(o, "display"); if (o.style) o.style.display = (display != "none") ? "none" : getDisplayStyleByTagName(o); } function getDisplayStyleByTagName(o) { n = o.nodeName.toLowerCase(); return ( n == "span" || n == "img" || n == "a" ) ? "inline" : "block"; } /** * hideElement() * * Hides an element from view. * * Typical usage: * hideElement(getElement("the-id-of-the-element")); */ function hideElement(o) { if (o && o.style) o.style.display = "none"; } /** * showElement() * * Shows an element that was hidden from view. * * Typical usage: * showElement(getElement("the-id-of-the-element")); */ function showElement(o) { if (o && o.style) o.style.display = getDisplayStyleByTagName(o); } /** * getElement() * * Returns an element by its ID or shows an alert if it can't be found. * * Typical usage: * getElement("the-id-of-the-element"); */ function getElement(id) { var e = d(id); if (!e) { alert("Cannot get element: " + id); } return e; } /** * setInnerHTML() * * Sets the innerHTML of an element or shows an alert if can't be set. * * Typical usage: * setInnerHTML("the-id-of-the-element"); */ function setInnerHTML(id, html) { try { getElement(id).innerHTML = html; } catch (ex) { alert("Cannot set inner HTML: " + id); } } /** * setCssStyle() * * Sets the style of an element by its id or shows an alert if can't be set. * * Typical usage: * setCssStyle("the-id-of-the-element", "display", "block"); */ function setCssStyle(id, name, value) { try { getElement(id).style[name] = value; } catch (ex) { alert("Cannot set style: " + id); } } /** * getStyle() * * Gets the computed style of any object. * * WARNING: Produces unexpected results in Safari. To achieve best * results, explicitly set the style property for that browser when the * element is rendered. * * Typical usage: * getStyle(object, "display"); */ function getStyle(el, style) { if (!document.getElementById || !el) return; if (document.defaultView && document.defaultView.getComputedStyle) { return document.defaultView. getComputedStyle(el, "").getPropertyValue(style); } else if (el.currentStyle) { return el.currentStyle[style]; } else { return el.style.display; } } /** * getStyleAttribute() * * Returns the style attribute of the specified node. */ function getStyleAttribute(node) { if (Detect.IE()) { return node.getAttribute('style').value; }else { return node.getAttribute('style'); } } /* * showProps() * * Displays all the properties for a given element */ function showProps(o) { s=""; for (p in o) { s+=p+": "+o[p]+"\n
"; } document.write(s); } function setIFrameEvent(iframe, eventName, func) { if (document.all) { eval('getIFrameDocument(iframe).on' + eventName + ' = func;'); } else { iframe.contentWindow.addEventListener(eventName, func, true); } } function setIFrameBody(iframe, strStyle, innerHtml) { if (!innerHtml) innerHtml = ''; if (innerHtml == '' && Detect.IE()) { innerHtml = '

'; } var doc = getIFrameDocument(iframe); doc.open(); doc.write('' + innerHtml + ''); doc.close(); } function getIFrameDocument(iframe) { if (Detect.IE()) { return iframe.document; } else { return iframe.contentDocument; } } function getIFrame(strId) { if (Detect.IE()) { return document.frames[strId]; } else { return document.getElementById(strId); } } function createElementandAppend(nodeName, strId, appendTo) { var el = document.createElement(nodeName); el.setAttribute("id", strId); if (appendTo) { appendTo.appendChild(el); } else { document.body.appendChild(el); } return el; } function createElementandInsertBefore(nodeName, strId, appendTo, sibling) { var el = document.createElement(nodeName); el.setAttribute("id", strId); if (appendTo) { appendTo.insertBefore(el, sibling); } else { document.body.insertBefore(el, sibling); } return el; } /** * getXY() * * Returns the position of any element as an object. * * Typical usage: * var pos = getXY(object); * alert(pos.x + " " +pos.y); */ function getXY(el) { var x = el.offsetLeft; var y = el.offsetTop; if (el.offsetParent != null) { var pos = getXY(el.offsetParent); x += pos.x; y += pos.y; } return {x: x, y: y} } /* Constants for node types, since IE doesn't support Node.TEXT_NODE */ var TEXT_NODE = 3; var ELEMENT_NODE = 1;