/* Written by Simon Willison: http://simon.incutio.com/archive/2004/05/26/addLoadEvent Queue up a whole series of events to be triggered when the document loads. If you simply use window.onload = func, then you run the risk of overwriting existing functions that are supposed to run when the onload event is triggered. */ function addLoadEvent(func) { var oldonload = window.onload; if (typeof window.onload != 'function') { window.onload = func; } else { window.onload = function() { oldonload(); func(); } } } /* This function loops through all the text inputs on a page and stores their default values. When a text input is brought into focus, its current value is checked against its default value. If they are the same, the value is cleared. This allows you to add placeholder text to inputs (recommended for accessibility) but users don't have to manually delete the placeholder text. This function is triggered when the page loads. The addLoadEvent.js file is required for this. */ addLoadEvent(clearInputs); function clearInputs() { if (!document.getElementsByTagName) return false; var all_inputs = document.getElementsByTagName('input'); for (var i=0;i, use freely /*@cc_on @if (@_win32 && @_jscript_version>4) var minmax_elements; minmax_props= new Array( new Array('min-width', 'minWidth'), new Array('max-width', 'maxWidth'), new Array('min-height','minHeight'), new Array('max-height','maxHeight') ); // Binding. Called on all new elements. If , initialise; check all // elements for minmax properties function minmax_bind(el) { var i, em, ms; var st= el.style, cs= el.currentStyle; if (minmax_elements==window.undefined) { // initialise when body element has turned up, but only on IE if (!document.body || !document.body.currentStyle) return; minmax_elements= new Array(); window.attachEvent('onresize', minmax_delayout); // make font size listener em= document.createElement('div'); em.setAttribute('id', 'minmax_em'); em.style.position= 'absolute'; em.style.visibility= 'hidden'; em.style.fontSize= 'xx-large'; em.style.height= '5em'; em.style.top='-5em'; em.style.left= '0'; if (em.style.setExpression) { em.style.setExpression('width', 'minmax_checkFont()'); document.body.insertBefore(em, document.body.firstChild); } } // transform hyphenated properties the browser has not caught to camelCase for (i= minmax_props.length; i-->0;) if (cs[minmax_props[i][0]]) st[minmax_props[i][1]]= cs[minmax_props[i][0]]; // add element with properties to list, store optimal size values for (i= minmax_props.length; i-->0;) { ms= cs[minmax_props[i][1]]; if (ms && ms!='auto' && ms!='none' && ms!='0' && ms!='') { st.minmaxWidth= cs.width; st.minmaxHeight= cs.height; minmax_elements[minmax_elements.length]= el; // will need a layout later minmax_delayout(); break; } } } // check for font size changes var minmax_fontsize= 0; function minmax_checkFont() { var fs= document.getElementById('minmax_em').offsetHeight; if (minmax_fontsize!=fs && minmax_fontsize!=0) minmax_delayout(); minmax_fontsize= fs; return '5em'; } // Layout. Called after window and font size-change. Go through elements we // picked out earlier and set their size to the minimum, maximum and optimum, // choosing whichever is appropriate // Request re-layout at next available moment var minmax_delaying= false; function minmax_delayout() { if (minmax_delaying) return; minmax_delaying= true; window.setTimeout(minmax_layout, 0); } function minmax_stopdelaying() { minmax_delaying= false; } function minmax_layout() { window.setTimeout(minmax_stopdelaying, 100); var i, el, st, cs, optimal, inrange; for (i= minmax_elements.length; i-->0;) { el= minmax_elements[i]; st= el.style; cs= el.currentStyle; // horizontal size bounding st.width= st.minmaxWidth; optimal= el.offsetWidth; inrange= true; if (inrange && cs.minWidth && cs.minWidth!='0' && cs.minWidth!='auto' && cs.minWidth!='') { st.width= cs.minWidth; inrange= (el.offsetWidthoptimal); } if (inrange) st.width= st.minmaxWidth; // vertical size bounding st.height= st.minmaxHeight; optimal= el.offsetHeight; inrange= true; if (inrange && cs.minHeight && cs.minHeight!='0' && cs.minHeight!='auto' && cs.minHeight!='') { st.height= cs.minHeight; inrange= (el.offsetHeightoptimal); } if (inrange) st.height= st.minmaxHeight; } } // Scanning. Check document every so often until it has finished loading. Do // nothing until arrives, then call main init. Pass any new elements // found on each scan to be bound var minmax_SCANDELAY= 500; function minmax_scan() { var el; for (var i= 0; i