Help with javascript function if-else statement

My web app displays a text box. The data can contain a full URL (http://abcdefg?itemcode=XYZ) or simply any text XYZ. If the text box begins with http I parse out some data based on the presence of the word itemcode; otherwise I simply pass along the text.

I have tried if-else and I've tried simply looking at a variable to determine the condition in order to pass the appropriate variable to the .php

In the snipet below when the else condition is executed an alert of -1 appears and the first 8 characters of my text string are truncated. For example if I enter 1234567890 in the text box then the alert of -1 appears and only 90 is passed to the .php.

Please look at the attached snipet and provide proper syntax and/or reason for the logical error.
ee.txt