// JavaScript utility functions /** * Useful for preventing duplicate form submissions. * Records whether the form has been submitted already, and only actually * submits it the first time. * The form should be able to submit correctly with JavaScript disabled. * * example: * * @tparam HTMLFormElement button The button to disable * @tparam String text The text to place on the button (optional) * @treturn Boolean Success or failure */ var shaButtonSubmitted = {}; function shaDisableButton(button, text) { if (button.name == 'submit') { alert('Your submit button has name="submit". This causes a problem with the JavaScript form.submit() function in IE 6. You must change the name of the submit button to use shaDisableButton(). See Task #9430 for background on this.'); return false; } if (!document.getElementById) return false; if (button.tagName.toLowerCase() == 'input' && button.getAttribute('type').toLowerCase() == 'submit') { if (!shaButtonSubmitted[button.name]) { shaButtonSubmitted[button.name] = true; form = button.form; if (!form) { alert('Error in shaDisableButton(): button must be within a form'); } if (button.name) { // store button name/value in hidden input since disabling // the button prevents them from being sent normally formField = document.createElement("input"); formField.setAttribute("type", "hidden"); formField.setAttribute("name", button.name); formField.setAttribute("value", button.value); form.appendChild(formField); } if (text) { button.setAttribute("value", text); } form.submit(); button.disabled = true; return true; } } else { alert('Error in shaDisableButton(): button must be a form submit button'); return false; } } /** * dsp function is used for FAQ section display. * It looks at the +/- character and change what it finds, then reverses the display state of the adjacent content block. */ function dsp(loc){ if(document.getElementById){ var foc=loc.firstChild; foc=loc.firstChild.innerHTML ? loc.firstChild : loc.firstChild.nextSibling; foc.innerHTML=foc.innerHTML=='+'?'–':'+'; foc=loc.parentNode.nextSibling.style ? loc.parentNode.nextSibling : loc.parentNode.nextSibling.nextSibling; foc.style.display=foc.style.display=='block'?'none':'block'; } } /** * function to count characters user types into a text field * displays "characters left: xxx" while counting down to zero * when count gets to zero, the user cannot enter any more * * args: obj = the form element * cntText = div-id of text for the title of the input element * maxChars = maximum characters allowed * labelStr = text string that is the title text of the element * to be displayed in with countdown * example, see: Live Site common/php/SHA/execed/cart/user.php form element

**/

function countChars(obj, cntText, maxChars, labelStr){
    var len_left = maxChars - obj.value.length;
    var str = obj.value;
     if( len_left <= 0 ){ len_left = 0; }
    document.getElementById(cntText).innerHTML = labelStr + " <span style='color: #b31b1b;'>Characters left: " + len_left + "</span>"; 
    str = str.substring(0, maxChars);
    if( len_left <= 0 ){ 
        obj.value = str;
    }
}

function htmlentities (string, quote_style) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: nobbler
    // +    tweaked by: Jack
    // +   bugfixed by: Onno Marsman
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // -    depends on: get_html_translation_table
    // *     example 1: htmlentities('Kevin & van Zonneveld');
    // *     returns 1: 'Kevin & van Zonneveld'
 
    var histogram = {}, symbol = '', tmp_str = '', i = 0;
    tmp_str = string.toString();
    
    if (false === (histogram = get_html_translation_table('HTML_ENTITIES', quote_style))) {
        return false;
    }
    
    for (symbol in histogram) {
        entity = histogram[symbol];
        tmp_str = tmp_str.split(symbol).join(entity);
    }
    
    return tmp_str;
}

function get_html_translation_table(table, quote_style) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // %          note: It has been decided that we're not going to add global
    // %          note: dependencies to php.js. Meaning the constants are not
    // %          note: real constants, but strings instead. integers are also supported if someone
    // %          note: chooses to create the constants themselves.
    // %          note: Table from http://www.the-art-of-web.com/html/character-codes/
    // *     example 1: get_html_translation_table('HTML_SPECIALCHARS');
    // *     returns 1: {'"': '"', '&': '&', '<': '<', '>': '>'}
    
    var entities = {}, histogram = {}, decimal = 0, symbol = '';
    var constMappingTable = {}, constMappingQuoteStyle = {};
    var useTable = {}, useQuoteStyle = {};
    
    useTable      = (table ? table.toUpperCase() : 'HTML_SPECIALCHARS');
    useQuoteStyle = (quote_style ? quote_style.toUpperCase() : 'ENT_COMPAT');
    
    // Translate arguments
    constMappingTable[0]      = 'HTML_SPECIALCHARS';
    constMappingTable[1]      = 'HTML_ENTITIES';
    constMappingQuoteStyle[0] = 'ENT_NOQUOTES';
    constMappingQuoteStyle[2] = 'ENT_COMPAT';
    constMappingQuoteStyle[3] = 'ENT_QUOTES';
    
    // Map numbers to strings for compatibilty with PHP constants
    if (!isNaN(useTable)) {
        useTable = constMappingTable[useTable];
    }
    if (!isNaN(useQuoteStyle)) {
        useQuoteStyle = constMappingQuoteStyle[useQuoteStyle];
    }
    
    if (useTable == 'HTML_SPECIALCHARS') {
        // ascii decimals for better compatibility
        entities['60'] = '<';
        entities['62'] = '>';
        entities['38'] = '&';
    } else if (useTable == 'HTML_ENTITIES') {
        // ascii decimals for better compatibility
      entities['38'] = '&';
      entities['60'] = '<';
      entities['62'] = '>';
      entities['160'] = ' ';
      entities['161'] = '¡';
      entities['162'] = '¢';
      entities['163'] = '£';
      entities['164'] = '¤';
      entities['165'] = '¥';
      entities['166'] = '¦';
      entities['167'] = '§';
      entities['168'] = '¨';
      entities['169'] = '©';
      entities['170'] = 'ª';
      entities['171'] = '«';
      entities['172'] = '¬';
      entities['173'] = '';
      entities['174'] = '®';
      entities['175'] = '¯';
      entities['176'] = '°';
      entities['177'] = '±';
      entities['178'] = '²';
      entities['179'] = '³';
      entities['180'] = '´';
      entities['181'] = 'µ';
      entities['182'] = '¶';
      entities['183'] = '·';
      entities['184'] = '¸';
      entities['185'] = '¹';
      entities['186'] = 'º';
      entities['187'] = '»';
      entities['188'] = '¼';
      entities['189'] = '½';
      entities['190'] = '¾';
      entities['191'] = '¿';
      entities['192'] = 'À';
      entities['193'] = 'Á';
      entities['194'] = 'Â';
      entities['195'] = 'Ã';
      entities['196'] = 'Ä';
      entities['197'] = 'Å';
      entities['198'] = 'Æ';
      entities['199'] = 'Ç';
      entities['200'] = 'È';
      entities['201'] = 'É';
      entities['202'] = 'Ê';
      entities['203'] = 'Ë';
      entities['204'] = 'Ì';
      entities['205'] = 'Í';
      entities['206'] = 'Î';
      entities['207'] = 'Ï';
      entities['208'] = 'Ð';
      entities['209'] = 'Ñ';
      entities['210'] = 'Ò';
      entities['211'] = 'Ó';
      entities['212'] = 'Ô';
      entities['213'] = 'Õ';
      entities['214'] = 'Ö';
      entities['215'] = '×';
      entities['216'] = 'Ø';
      entities['217'] = 'Ù';
      entities['218'] = 'Ú';
      entities['219'] = 'Û';
      entities['220'] = 'Ü';
      entities['221'] = 'Ý';
      entities['222'] = 'Þ';
      entities['223'] = 'ß';
      entities['224'] = 'à';
      entities['225'] = 'á';
      entities['226'] = 'â';
      entities['227'] = 'ã';
      entities['228'] = 'ä';
      entities['229'] = 'å';
      entities['230'] = 'æ';
      entities['231'] = 'ç';
      entities['232'] = 'è';
      entities['233'] = 'é';
      entities['234'] = 'ê';
      entities['235'] = 'ë';
      entities['236'] = 'ì';
      entities['237'] = 'í';
      entities['238'] = 'î';
      entities['239'] = 'ï';
      entities['240'] = 'ð';
      entities['241'] = 'ñ';
      entities['242'] = 'ò';
      entities['243'] = 'ó';
      entities['244'] = 'ô';
      entities['245'] = 'õ';
      entities['246'] = 'ö';
      entities['247'] = '÷';
      entities['248'] = 'ø';
      entities['249'] = 'ù';
      entities['250'] = 'ú';
      entities['251'] = 'û';
      entities['252'] = 'ü';
      entities['253'] = 'ý';
      entities['254'] = 'þ';
      entities['255'] = 'ÿ';
    } else {
        throw Error("Table: "+useTable+' not supported');
        return false;
    }
    
    if (useQuoteStyle != 'ENT_NOQUOTES') {
        entities['34'] = '"';
    }
    
    if (useQuoteStyle == 'ENT_QUOTES') {
        entities['39'] = ''';
    }
    
    // ascii decimals to real symbols
    for (decimal in entities) {
        symbol = String.fromCharCode(decimal)
        histogram[symbol] = entities[decimal];
    }
    
    return histogram;
}