"use strict"; var utils = { getGUID: function() { function s4() { return Math.floor((1 + Math.random()) * 0x10000) .toString(16) .substring(1); } return s4() + s4() + '-' + s4() + '-' + s4() + '-' + s4() + '-' + s4() + s4() + s4(); }, indexOf: function(array, searchElement, fromIndex) { if (Array.prototype.indexOf) { return array.indexOf(searchElement, fromIndex); } else { var k; var O = Object(array); // 2. Let lenValue be the result of calling the Get // internal method of O with the argument "length". // 3. Let len be ToUint32(lenValue). var len = O.length >>> 0; // 4. If len is 0, return -1. if (len === 0) { return -1; } // 5. If argument fromIndex was passed let n be // ToInteger(fromIndex); else let n be 0. var n = +fromIndex || 0; if (Math.abs(n) === Infinity) { n = 0; } // 6. If n >= len, return -1. if (n >= len) { return -1; } // 7. If n >= 0, then Let k be n. // 8. Else, n<0, Let k be len - abs(n). // If k is less than 0, then let k be 0. k = Math.max(n >= 0 ? n : len - Math.abs(n), 0); // 9. Repeat, while k < len while (k < len) { var kValue; // a. Let Pk be ToString(k). // This is implicit for LHS operands of the in operator // b. Let kPresent be the result of calling the // HasProperty internal method of O with argument Pk. // This step can be combined with c // c. If kPresent is true, then // i. Let elementK be the result of calling the Get // internal method of O with the argument ToString(k). // ii. Let same be the result of applying the // Strict Equality Comparison Algorithm to // searchElement and elementK. // iii. If same is true, return k. if (k in O && O[k] === searchElement) { return k; } k++; } return -1; } }, // from http://ejohn.org/projects/flexible-javascript-events/ addEvent: function( obj, type, fn ) { if ( obj.attachEvent ) { obj['e'+type+fn] = fn; obj[type+fn] = function(){obj['e'+type+fn]( window.event );} obj.attachEvent( 'on'+type, obj[type+fn] ); } else obj.addEventListener( type, fn, false ); }, // from http://ejohn.org/projects/flexible-javascript-events/ removeEvent: function( obj, type, fn ) { if ( obj.detachEvent ) { obj.detachEvent( 'on'+type, obj[type+fn] ); obj[type+fn] = null; } else obj.removeEventListener( type, fn, false ); } };