function showsub_a(id,a,b){
for (i = a;i<b;i++){
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	document.getElementById("sub_a"+i).style.display = "none";
}
	document.getElementById("tab_a"+id).className = "selected";
	document.getElementById("sub_a"+id).style.display = "";
}

function setTab(m,n){ 
var tli=document.getElementById("menu"+m).getElementsByTagName("li"); 
var mli=document.getElementById("main"+m).getElementsByTagName("ul"); 
for(i=0;i<tli.length;i++){ 
tli[i].className=i==n?"b-hover":"b-out"; 
mli[i].style.display=i==n?"block":"none"; 
} 
} 

window.onload=function()
{
 var o=document.getElementById('infozone');
 window.setInterval(function(){scrollup(o,20,0);},2000);
}

function scrollup(o,d,c)
{
 if(d==c){
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  window.setTimeout(function(){scrollup(o,d,c-l)},100);
 }
}