====== getElementImage ======
Returns the image of the specified element.
===== Syntax =====
getElementImage = function(aElement);
==== Parameters ====
* **//aElement//**
* //functions:// element, the image of which is necessary to obtain
==== Returned value ====
* //functions:// image of the specified element
===== Examples =====
-//Loading page with image (in this case - a captcha)
loadURI('http://www.google.com/recaptcha/learnmore');
//Obtain an element that contains an image
var imageElement = getElement('img',0,['src'],['google.com/recaptcha/']);
//Obtain an image of the element
var image = getElementImage(imageElement);
//Output to the log pixel color with coordinates (10,10)
log(IntToStr(image.pixels[10][10]));
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