is = new check_browser();function check_browser() {var brows;var agt;this.b = null;this.v = null;brows = navigator.appName;if (brows=="Netscape") {this.b = "ns";} else if (brows=="Microsoft Internet Explorer") {this.b = "ie";} else {this.b = b;};this.version = navigator.appVersion;this.v = parseInt(this.version);this.ns = (this.b=="ns" && this.v>=4);this.ns4 = (this.b=="ns" && this.v==4);this.ns5 = (this.b=="ns" && this.v==5);this.ie = (this.b=="ie" && this.v>=4);this.ie4 = (navigator.userAgent.indexOf('MSIE 4')>0);this.ie5 = (navigator.userAgent.indexOf('MSIE 5')>0);if (this.ie5) {this.v = 5;};this.min = (this.ns||this.ie);agt = navigator.userAgent.toLowerCase();this.mac = (agt.indexOf("mac")!=-1);this.mac68k = (this.mac && ((agt.indexOf("68k")!=-1) || (agt.indexOf("68000")!=-1)));this.macppc = (this.mac && ((agt.indexOf("ppc")!=-1) || (agt.indexOf("powerpc")!=-1)));return;}