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 c6=document.getElementById("ld6").innerHTML;
var c7=document.getElementById("ld7").innerHTML;

var aHtmls = new Array (c1,c2,c3,c4,c5,c6,c7);
				
function getNavigatorType() {
	if (navigator.appName == "Microsoft Internet Explorer") return 1;  
	else if (navigator.appName == "Netscape") return 2;	
	else return 0;
}
		
function changeHanger(nGotoNo,num){
	nHangNo = nGotoNo;

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

}

function setHanger(num){
	objHanger.innerHTML=aHtmls[nHangNo];
	switch(num){
	  case "0":
	    document.getElementById("collegeview").style.display="block";
	    document.getElementById("divHanger").style.height="197px";
	    break;
	  case 0:
	    document.getElementById("collegeview").style.display="block";
	    document.getElementById("divHanger").style.height="197px";
	    break;
	  default:
	    document.getElementById("collegeview").style.display="none";
	    document.getElementById("divHanger").style.height="546px";
	    break;
	}
}

function setTypeTitle(num){
  switch(num){
    case "0":
    document.getElementById("type").innerHTML="学校简介";
    document.getElementById("mPlayer1").controls.play();
    break;
    
    case 0:
    document.getElementById("type").innerHTML="学校简介";
    document.getElementById("mPlayer1").controls.play();
    break;
    
    case 1:
    document.getElementById("type").innerHTML="历史沿革";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case "1":
    document.getElementById("type").innerHTML="历史沿革";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case 2:
    document.getElementById("type").innerHTML="现任领导";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case "2":
    document.getElementById("type").innerHTML="现任领导";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case 3:
    document.getElementById("type").innerHTML="组织机构";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case "3":
    document.getElementById("type").innerHTML="组织机构";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case 4:
    document.getElementById("type").innerHTML="学校荣誉";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case "4":
    document.getElementById("type").innerHTML="学校荣誉";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case 5:
    document.getElementById("type").innerHTML="校园风光";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case "5":
    document.getElementById("type").innerHTML="校园风光";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case 6:
    document.getElementById("type").innerHTML="校园文化";
    document.getElementById("mPlayer1").controls.stop();
    break;
    
    case "6":
    document.getElementById("type").innerHTML="校园文化";
    document.getElementById("mPlayer1").controls.stop();
    break;
  }
}