function showMsg(){
if( navigator.appName.charAt(0)=="N" ){ 
if(navigator.appVersion.charAt(0)==2){ document.layer1.visibility="show"; }
if(navigator.appVersion.charAt(0)==3){ document.layer1.visibility="show"; }
if(navigator.appVersion.charAt(0)==4){ document.layer1.visibility="show"; }
if(navigator.appVersion.charAt(0)<=6){ document.getElementById("layer1").style.visibility="visible";}
}
if( navigator.appName.charAt(0)=="M" ){
if(navigator.appVersion.charAt(0)==2){ layer1.style.visibility="visible"; }
if(navigator.appVersion.charAt(0)==3){ layer1.style.visibility="visible"; }
if(navigator.appVersion.charAt(0)==4){
if (navigator.appVersion.indexOf("MSIE 5") != -1) { layer1.style.visibility="visible"; }
else { layer1.style.visibility="visible"; }
}
if(navigator.appVersion.charAt(0)==5){ layer1.style.visibility="visible"; }
}
}

function action(){
if( navigator.appName.charAt(0)=="N" ){ 
if(navigator.appVersion.charAt(0)==2){ document.layer1.visibility="hide"; }
if(navigator.appVersion.charAt(0)==3){ document.layer1.visibility="hide"; }
if(navigator.appVersion.charAt(0)==4){ document.layer1.visibility="hide"; }
if(navigator.appVersion.charAt(0)<=6){ document.getElementById("layer1").style.visibility="hidden";}
}
if( navigator.appName.charAt(0)=="M" ){
if(navigator.appVersion.charAt(0)==2){ layer1.style.visibility="hidden"; }
if(navigator.appVersion.charAt(0)==3){ layer1.style.visibility="hidden"; }
if(navigator.appVersion.charAt(0)==4){
if (navigator.appVersion.indexOf("MSIE 5") != -1) { layer1.style.visibility="hidden"; }
else { layer1.style.visibility="hidden"; }
}
if(navigator.appVersion.charAt(0)==5){ layer1.style.visibility="hidden"; }
}
}

function hideMsg(){
window.setTimeout("action()",3000);
}