function tableLight() {
  if (document.getElementById) {
      tables = document.getElementsByTagName('table');
    for (i=0;i<tables.length;i++) {
      if (tables[i].className == 'price') { 
        trs = tables[i].getElementsByTagName('tr');

        for (j=0;j<trs.length;j++) {
          if (trs[j].className != 'title') {
            trs[j].onmouseover = function() { this.className = 'line'; return false; }
            	if (trs[j].className == 'gray')	
            		trs[j].onmouseout = function() { this.className = 'gray';  return false; }
            	else	
            		trs[j].onmouseout = function() { this.className = 'white'; return false;}
          }
        }
      }
    }
  }
}