function ChangeSub(submenu,state) {

var isNet6;

var isIE;

if (navigator.appName == "Netscape") {

if (navigator.appVersion.charAt(0) == "5") isNet6 = true;

}

if (navigator.appName.indexOf("Microsoft") != -1) isIE = true;

var VisTest;

var div1Object;

if (isNet6) {

VisTest = "none";

if (submenu== "heliskiing"){

div1Object = document.getElementById("sub_heliskiing").style;		

}

if (submenu== "your_trip"){

div1Object = document.getElementById("sub_your_trip").style;		

}

if (submenu== "airpowder"){

div1Object = document.getElementById("sub_airpowder").style;		

}

if (submenu== "contact_us"){

div1Object = document.getElementById("sub_contact_us").style;		

}

}

if (isIE) {

VisTest = "none";

if (submenu== "heliskiing"){

div1Object = document.all.sub_heliskiing.style;

}

if (submenu== "your_trip"){

div1Object = document.all.sub_your_trip.style;

}

if (submenu== "airpowder"){

div1Object = document.all.sub_airpowder.style;

}

if (submenu== "contact_us"){

div1Object = document.all.sub_contact_us.style;

}

}

div1Object.display = state;

}