Introduction - If you have any usage issues, please Google them yourself
		 
//	Function: FindStringInSortedArray
//	Usage: index = FindStringInSortedArray (key, array, n) 
//	-------------------------------------------------------------
//	The function searchs the array looking for the specified key.
//	The argument n specifies the effective size of the array, which must
//	be sorted according to the lexicographic order imposed by StringCompare. 
//	If the key is found, the order imposed by StringCompare. If the key is found, the order imposed by
//	StringCompare. If the key is found, the function returns the index in the array at which that key appears.
//	(If the key appears more than once in the array, any of the mathcing indices may be returned). If the key
//	does not exist in the array, the funcion returns-1. In this implementation, FindStringInSortedArray is simply
//	a wrapper  all the work is done by the recursive function BinarySearch.