function ChangDiv(uid,css,num,div)
{  
  var tabList = document.getElementById(uid).getElementsByTagName("li");
for(i=0; i<tabList.length; i++)
{
  if (i ==num )
  { 

  tabList[i].className =css;

 document.getElementById(""+div+""+i+"").style.display="block";
    
  }else{

  tabList[i].className = "none"; 
 document.getElementById(""+div+""+i+"").style.display="none";
    }
} 

}

function ChangClass(uid,css,num)
{    
  var tabList = document.getElementById(uid).getElementsByTagName("li");

for(i=0; i<tabList.length; i++)
{
  if (i==num )
  { 

  tabList[i].className =css;
  document.getElementById("subNav"+i+"").style.display="block";

  }else{
      tabList[i].className ="none"; 
      document.getElementById("subNav"+i+"").style.display="none";

      }
} 

}


function dis(id,num)
{
	for (var i=1;i<=num;i++)
	{
		if(id==i)
		{
			if(document.getElementById("ul"+i).style.display=="block"){
				document.getElementById("ul"+i).style.display="none"
			}else{
				document.getElementById("ul"+i).style.display="block"
			}			
			
		}else{
			document.getElementById("ul"+i).style.display="none";
		}
	}
}




function fontZoom(size)
{
 document.getElementById('fontzoom').style.fontSize=size+'px'
}