Function equalsIgnoreCase( s1, s2 )

Description:
Determines whether two strings are equal apart from possible upper/lower case distinctions.
Parameters:
s1 (String)
first string
s2 (String)
second string
Return Value (boolean):
true if s1 and s2 are both blank, or have the same content apart from case folding
Examples:
Signature:
boolean equalsIgnoreCase(String, String)