var linesCounter = 0;
            jQuery(document).ready(function(){
                jQuery('.usercp tr').each(function(){
                    var tr = jQuery(this);
                    linesCounter++;
                    if(tr.children('.head').length > 0 || tr.children('.thead').length > 0) {
                        linesCounter = 0;
                        return;
                    }
                    if(linesCounter % 2 == 0) {
                        tr.addClass('gray');
                    }
                })
            });