Returns a copy of a string without leading spaces (LTrim), 
trailing spaces (RTrim), or both leading and trailing 
spaces (Trim).

LTrim(string)
RTrim(string)
Trim(string)
The string argument is any valid string expression. If 
string contains Null, Null is returned. 

Remarks
The following example uses the LTrim, RTrim, and Trim 
functions to trim leading spaces, trailing spaces, and both 
leading and trailing spaces, respectively: 

Dim MyVar
MyVar = LTrim("   vbscript ")   ' MyVar 
contains "vbscript ".
MyVar = RTrim("   vbscript ")   ' MyVar contains "   
vbscript".
MyVar = Trim("   vbscript ")   ' MyVar contains "vbscript".