[jQuery] 'JQuery' tag is not working at all

[jQuery] 'JQuery' tag is not working at all


Hi!
Iam using JQuery 1.3. "$" tag is working fine. But when I try to
use jquery plugin'jqGrid'. It gives error. As I think, this plugin is
using 'JQuery' and my system is not recognising this tag [JQuery].
Following is the error, generated by Firebug.
jQuery(modwin).jqDrag is not a function
http://localhost/main/vibersol/shipping/main/js/jqGrid/grid.common.js
Line 66
Can some one guide me, how to solve this problem.
NOTE: Iam running default example of JQGRID.
Thanks in advance