function browserCheck(){
     this.ver=navigator.appVersion
     this.agent=navigator.userAgent.toLowerCase()
     this.dom=document.getElementById?1:0
     this.ns4=(!this.dom && document.layers)?1:0;
     this.op=window.opera
     this.moz=(this.agent.indexOf("gecko")>-1 || window.sidebar)
     this.ie=this.agent.indexOf("msie")>-1 && !this.op
     if(this.op){
          this.op5=(this.agent.indexOf("opera 5")>-1 || this.agent.indexOf("opera/5")>-1)
          this.op6=(this.agent.indexOf("opera 6")>-1 || this.agent.indexOf("opera/6")>-1)
          this.op7=this.dom&&!this.op5&&!this.op6
     }else if(this.moz) this.ns6 = 1
     else if(this.ie){
          this.ie4 = !this.dom && document.all
       this.ie5 = (this.agent.indexOf("msie 5")>-1)
       this.ie55 = (this.ie5 && this.agent.indexOf("msie 5.5")>-1)
       this.ie6 = this.dom && !this.ie4 && !this.ie5 && ! this.ie55
     }
     this.mac=(this.agent.indexOf("mac")>-1)
     this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.op5 || this.op6 || this.op7)
  this.usedom= this.ns6||this.op7
  this.reuse = this.ie||this.op7||this.usedom
  this.px=this.dom&&!this.op5?"px":""
     return this
}
var bc=new browserCheck()


var browser_type=navigator.appName;

var browser_version=parseInt(navigator.appVersion);

if(bc.mac) document.writeln("<LINK REL='StyleSheet' TYPE='text/css' HREF='gdd_mac.css'>");
else {
if (browser_type=="Netscape"&&browser_version>=4)
document.write("<LINK REL='StyleSheet' TYPE='text/css' HREF='gdd_net.css'>")
else
document.write("<LINK REL='StyleSheet' TYPE='text/css' HREF='gdd.css'>");
     }