var sortOrder = [];
 $(function(){ 
     $("#tblHead").find("th").each(function(idx){
             sortOrder[idx] = 0;
	     $(this).click(function(){
		     $("#tblHead").find("th").removeClass("bcopyDown");
		     $(this).addClass("bcopyDown");
		     sortOrder[idx] = (sortOrder[idx]+1)%2;
		     var sorting = [[idx,sortOrder[idx]]];
		     $("#warrant_table").trigger("sorton",[sorting]);
	     });
     });
 });