// JavaScript Document
function navtabs(num,sum){
    for(i=1;i<=sum;i++){
	    if(i==num){
            eval(document.getElementById("nav_"+i)).className = "menu";
      }
      else{
	      eval(document.getElementById("nav_"+i)).className = "";
	      }
    }
}
//VipÃûʦ·ç²É
function teatabs(num,sum){
    for(i=1;i<=sum;i++){
	    if(i==num){
            eval(document.getElementById("tea_"+i)).className = "tover";
      }
      else{
	      eval(document.getElementById("tea_"+i)).className = "";
	      }
    }
}
function tabs(num,sum){
    for(i=1;i<=sum;i++)
    {
	    if(i==num){
      eval(document.getElementById("tabs_"+i)).className = "it";
      eval(document.getElementById("list_"+i)).className = "show";
      }else{
	      eval(document.getElementById("tabs_"+i)).className = "its";
	      eval(document.getElementById("list_"+i)).className = "hidd";
	      }
    }
}