// JavaScript Document


function showdiv_2(divnum,divbefor){
       document.getElementById("Nav2_1").className = "Downfg";
	   document.getElementById("Nav2_2").className = "Downjz";
	   if(divbefor == 1){
       document.getElementById("Nav2_1").className = "Downfg";
	   document.getElementById("Nav2_2").className = "Downjz";
     	}
	   if(divbefor == 2){
       document.getElementById("Nav2_1").className = "Downjz";
	   document.getElementById("Nav2_2").className = "Downfg";
	   }
	for(i=1;i<=divnum;i++){
				if(i==divbefor){
						document.getElementById("Content2_"+i).style.display ="block";
						document.getElementById("ty_"+i).className ="fgjz";
				}else{
						document.getElementById("Content2_"+i).style.display ="none";
						document.getElementById("ty_"+i).className ="kgjz";
				}
        }	   
}