// JavaScript Document  
  function changeBg(m){
	  for(i=1;i<=7; i++){
	   eval("document.getElementById('col"+i+"').className='colGeneral'");
	  }
	 eval("document.getElementById('col"+m+"').className='colNonce'");
	 if(m==7)
	   eval("document.getElementById('col"+m+"').className='colBlank'");
  }
 
 function changeBtn(n,m){
	for(i=1;i<=m; i++){
	  document.getElementById("cfNonce"+i).style.background=i==n? "url(/templets/xueyuan/image/btn_certificateOn.gif)" : "url(/templets/xueyuan/image/btn_certificateOff.gif)";	  
	  document.getElementById("cfImg"+i).style.display=i==n? "block" : "none";
	}
 }
 
 function showSpecialty(n,m,btn,area){
	for(i=1;i<=m; i++){
	  document.getElementById(btn+i).style.background=i==n? "url(/templets/xueyuan/image/btn_choiceOn.gif)":"url(/templets/xueyuan/image/btn_choiceOff.gif)";	  
	  document.getElementById(area+i).style.display=i==n? "block" : "none";
	}
	 
 }