var nHangNo = (Math.floor((Math.random()) * 1000) % 7) + 1;
var nHangNoOld = nHangNo;
var objHanger  = document.getElementById("divHanger");

var c1=document.getElementById("ld1").innerHTML;
var c2=document.getElementById("ld2").innerHTML;
var c3=document.getElementById("ld3").innerHTML;
var c4=document.getElementById("ld4").innerHTML;
var c5=document.getElementById("ld5").innerHTML;

var aHtmls = new Array (c1,c2,c3,c4,c5);
				
function getNavigatorType() {
	if (navigator.appName == "Microsoft Internet Explorer") return 1;  
	else if (navigator.appName == "Netscape") return 2;	
	else return 0;
}
		
function changeHanger(nGotoNo){
	nHangNo = nGotoNo;

	if (getNavigatorType() == 1) {
		objHanger.filters[0].apply();
		setHanger();
		objHanger.filters[0].play();
		
	} else {
		setHanger();
	}

}

function setHanger(){
	objHanger.innerHTML=aHtmls[nHangNo];
}


function setTypeTitle(num){
  switch(num){
    case "0":
    document.getElementById("type").innerHTML="教研组织";
    break;
    
    case 0:
    document.getElementById("type").innerHTML="教研组织";
    break;
    
    case 1:
    document.getElementById("type").innerHTML="师资队伍";
    break;
    
    case "1":
    document.getElementById("type").innerHTML="师资队伍";
    break;
    
    case 2:
    document.getElementById("type").innerHTML="教师文苑";
    break;
    
    case "2":
    document.getElementById("type").innerHTML="教师文苑";
    break;
    
    case 3:
    document.getElementById("type").innerHTML="成人教育";
    break;
    
    case "43":
    document.getElementById("type").innerHTML="成人教育";
    break;
    
    case 4:
    document.getElementById("type").innerHTML="实验室";
    break;
    
    case "4":
    document.getElementById("type").innerHTML="实验室";
    break;
    
    
  }
}