// JavaScript Document
window.onload=init;

function $$(domId){
	return document.getElementById(domId);
}

function init(){
var tablemenu=$$("tablemenu");
tds = tablemenu.getElementsByTagName("td");
	for(i=0;i<tds.length;i++){
		tds[i].onmouseover=show;
		tds[i].onmouseout=show;
	}

}

function show(event){
	var div=this.getElementsByTagName("div");
	var lable = this.id;
	if(div.length>0){
		var divshow = div[1].style.visibility;
		if(divshow=="hidden"){
			div[1].style.visibility = "visible";
			//this.className="menu3";
		}
		else{
			div[1].style.visibility = "hidden";
			//this.className="menu3";
		}
		
	}
}


//ͼƬÂÖÏÔЧ¹û
function setTransition(){ 
document.getElementById("bigpic").filters.revealTrans.Transition=Math.floor(Math.random()*23);
document.getElementById("bigpic").filters.revealTrans.apply();  
} 

function playTransition(){
document.getElementById("bigpic").filters.revealTrans.play() 
}


var ads=1;
function setpic(t){
	clearInterval(thetime);
	var bignum = (bigphotos.length);
	var j = t-1;
	for(var x=1;x<(bignum+1);x++){
		if(t==x){
			$$('lable'+x).className = "navon";
			}
		else{
			$$('lable'+x).className = "navout";
			}
		}
	setTransition();
	$$('bigpic').src = bigphotos[j];
	$$('picfont').innerHTML = texts[j];
	playTransition();
	
	if(ads==bignum){ads=1}
	else{ads++}
	
	thetime = setInterval("setpic(ads)",4000);
	}


function nextad(lableon,lableout){
	thetime = setInterval("setpic(1)",4000);
	}
	
function setlables(t){

	for(var j=1;j<=7;j++){
		if(j==t){
			$$("top"+j).className = "menu2";
			}
		else{
			$$("top"+j).className = "menu3";
			}
		}
	}