====== CutLeft ======
Cuts the part of the original string up to the specified delimiter
===== Syntax =====
<code pascal>function CutLeft(var aInText: string; aDelimiter: string): string;</code>
==== Parameters ====
  * **//aInText//** 
    * //type:// string
    * //functions:// the source string
  * **//aDelimiter//** 
    * //type:// string
    * //functions:// delimiter
==== Returned value ====
  * //type:// string
  * //functions:// cut part
===== Notes =====
  * Variable aInText as result of operation must contain the part that remained
  * aDelimiter is removed during operation
===== Examples =====
  -<code pascal>var aStr='substr1|substr2|substr3';
var sub1:=CutLeft(aStr,'|');
//aStr='substr2|substr3'
//sub1='substr1'</code>