function jj(id) {
	return document.getElementById(id);
}

function changeTab(index,total) {
    for(var i=1;i<=total;i++) {
        if(i == index) {
            document.getElementById('tab_'+i).className='on';
            document.getElementById('block_'+i).style.display='block';
            currentTab = i;
        } else {
            document.getElementById('tab_'+i).className='';
            document.getElementById('block_'+i).style.display='none';
        }
    }
}

function changeTab2(index,total) {
    for(var i=0;i<total;i++) {
        if(i == index) {
            document.getElementById('yuer_'+i).className='yuerbox yuerbox_on';
            currentTab = i;
        } else {
            document.getElementById('yuer_'+i).className='yuerbox';
        }
    }
}

var pics = new Array,nextPic = 1,timer = null;

function changePic(index) {
	nextPic = index+1;
	var pic = pics[index];
    jj('lunbo_img').src = pic.img;
    jj('lunbo_link').href = pic.url;
	jj('lunbo_link1').href = pic.url;
    jj('lunbo_link1').innerHTML = pic.title;
    jj('lunbo_intro').innerHTML = pic.intro;
	for(var i=0;i<pics.length;i++) {
		jj('lunbo_'+i).className = '';
	}
	jj('lunbo_'+index).className = 'on';
}

function picOn() {
	timer = setInterval(function(){
		if(nextPic >= pics.length) {
			nextPic = 0;
		}
		changePic(nextPic);
	}, 10000);
}

function picOff(index) {
	changePic(index);
	if(timer !== null) clearTimeout(timer);
}