var ELM = (document.getElementById);
var IE5 = ((ELM) && (navigator.userAgent.toLowerCase().indexOf('msie')!=-1) && !(window.opera));
var IEM = ((IE5) && (navigator.userAgent.toLowerCase().indexOf("mac")!=-1));
var GKO = (navigator.userAgent.toLowerCase().indexOf('gecko')!=-1);
var OPX = ((ELM) && (window.opera));
var OP6 = ((navigator.userAgent.toLowerCase().indexOf('opera 6')!=-1)||(navigator.userAgent.toLowerCase().indexOf('opera/6')!=-1));
var OP7 = ((navigator.userAgent.toLowerCase().indexOf('opera 7')!=-1)||(navigator.userAgent.toLowerCase().indexOf('opera/7')!=-1));
var W3C = ((ELM) && !(IE5));
var DYN = (((document.layers) || (document.all)) && !(ELM));