alias netclean
{
	foreach splittime ii
          {
        	foreach splittime.$ii jj
                  {
                      if (time() - splittime[$ii][$jj] > 300)
                         {
                      		foreach signcross.$(ii).$jj xx
                                  {
                                     foreach signcross.$(ii).$(jj).$xx yy
                                       {
                                     	@signcross[$ii][$jj][$xx][$yy] = []
                                     	@signoffs[$xx][$yy] = []
                                       }
                                  }
                      	@xx = []
                       	@yy = []
                       	@isbroke[$ii][$jj] = []
                       	@splitname[$ii][$jj] = []
                       	@splittime[$ii][$jj] = []
                         }
                  }
          }
        	@ii = []
         	@jj = []
}
