====== jQueryGetElement ======
Gets the element in the active tab, satisfying the specified conditions
===== Syntax =====
<code javascript>jQueryGetElement = function(aSelector, aIndex);</code>
==== Parameters ====
  * **//aSelector//** 
    * //functions:// [[http://anton.shevchuk.name/javascript/jquery-for-beginners-selectors/|селектор в стиле JQuery]]
  * **//aIndex//** 
    * //functions:// the index of the desired element
==== Returned value ====
  * //functions:// structure that contains the parameters of the found element 
===== Notes =====
  * If the index of the desired element aIndex is -1, it will be obtained a random element from the found
  * If none are found, then the resultant structure of the field will be empty.
  * Found element is highlighted by a dotted frame
===== Examples =====
  -<code javascript>//Select the first element div with id = sidebar
var element = jQueryGetElement('div#sidebar',0);
//If the element is found, the
if (element.varName !== ''){
//Emulate a click on it
  ClickElement(element);
}</code>
  -<code javascript>//Select a random span element that is in a div element
var element = jQueryGetElement('div span',-1);</code>
  -<code javascript>//Select the second img element that is after a span element
var element = jQueryGetElement('span + img',1);</code>