Transforming/trimming text in XSLT 2.0

Hi all,

Does anyone know how I go from this:
46058: TableTitle: Table 2: TRANSFER OF CAD/CAM DATA

to this:
TRANSFER OF CAD/CAM DATA

Using XSLT 2?

Note that the first sequence of letters will not always be the same. 
Basically I am looking for a way to capture all the text that appears 
after the last colon.

TIA

Nadia