I had the same problem with my dynamic filter addon, and fixed it with the code at this page; many thanks;
but I have already another error at top of the page :
Warning: trim() expects parameter 1 to be string, array given in /home/o112445/public_html/includes/functions/functions_general.php on line 63

please can somebody help me to fix it also;

site: http://www.rugs-tapestries.com

example:
http://www.rugs-tapestries.com/produ...B%5D=&x=19&y=4

thanks a lot ;