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// Collection of convenient element functions (elements.js)
HashOverConstructor.prototype.elements = {
cache: {},
// Shorthand for Document.getElementById ()
get: function (id, force, prefix)
{
id = (prefix !== false) ? 'hashover-' + id : id;
if (force === true || !this.cache[id]) {
this.cache[id] = document.getElementById (id);
}
return this.cache[id];
},
// Execute callback function if element isn't false
exists: function (element, callback, prefix)
{
if (element = this.get (element, true, prefix)) {
return callback (element);
}
return false;
},
// Adds properties to an element
addProperties: function (element, properties)
{
element = element || document.createElement ('span');
properties = properties || {};
// Add each property to element
for (var property in properties) {
if (properties.hasOwnProperty (property) === false) {
continue;
}
// Property value
var value = properties[property];
// If the property is an object add each item to existing property
if (!!value && value.constructor === Object) {
this.addProperties (element[property], value);
continue;
}
element[property] = value;
}
return element;
},
// Creates an element with attributes
create: function (tagName, attributes)
{
tagName = tagName || 'span';
attributes = attributes || {};
// Create element
var element = document.createElement (tagName);
// Add properties to element
element = this.addProperties (element, attributes);
return element;
},
// Adds duplicate event listeners to an element
duplicateProperties: function (element, names, value)
{
var properties = {};
// Construct a properties object with duplicate values
for (var i = 0, il = names.length; i < il; i++) {
properties[(names[i])] = value;
}
// Add the properties to the object
return this.addProperties (element, properties);
}
};
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