<!--
  function obj_bwCheck() { 
    this.ver = navigator.appVersion;
    this.agent = navigator.userAgent;
    this.dom = document.getElementById?true:false;

    this.browser = this.agent;
    if (document.all) {
      if (!this.dom) {
        this.browser = (this.agent.indexOf("Opera 5") > -1)?"opera5":"ie4";
      }
      else {
        if (this.ver.indexOf("MSIE 5") > -1)
          this.browser = "ie5";
        else if (this.ver.indexOf("MSIE 6") > -1)
          this.browser = "ie6";
        else if (parseInt(this.ver) >= 5) 
          this.browser = "ns6";
      }
    }  
    if (document.layers && !this.dom) this.browser = "ns4";
    this.mac = this.agent.indexOf("Mac") > -1;
    
    this.ie = ((this.browser == "ie4") || (this.browser == "ie5") || (this.browser == "ie6"));
    this.ns = ((this.browser == "ns4") || (this.browser == "ns6"));
    this.opera = (this.browser == "opera5");
    this.menuable = (this.ie || this.ns || this.opera5);
    
    return (this);
  }
//-->