//--全选，反选歌曲
//1.checkbox,2.button
function od_ChangeState(obj,checkboxname,bttype){
	if(obj.type=='checkbox'){
		if(obj.checked){
			od_SelectAll(checkboxname);
		}else{
			od_UnSelectAll(checkboxname,1);
		}
	}else{//button
		if(bttype==1){//select all
			od_SelectAll(checkboxname);
		}else if(bttype==0){
			od_UnSelectAll(checkboxname,2);
		}
	}
}

function od_SelectAll(checkboxname){
	var hotmusic = document.getElementsByName(checkboxname);
	for(var i=0;i<hotmusic.length;i++){
		if(!hotmusic[i].disabled){
			hotmusic[i].checked=true;
		}
	}
}

function od_UnSelectAll(checkboxname,bttype){
	var hotmusic = document.getElementsByName(checkboxname);
	for(var i=0;i<hotmusic.length;i++){
		if(hotmusic[i].checked){
			if(!hotmusic[i].disabled){
				hotmusic[i].checked=false;
			}
		}else{
			if(bttype==2){
				if(!hotmusic[i].disabled){
					hotmusic[i].checked=true;
				}
			}else{
				hotmusic[i].checked=false;
			}
		}
	}
}

function od_CheckSelectState(btname,checkboxname){
	var hotmusic = document.getElementsByName(checkboxname);
	for(var i=0;i<hotmusic.length;i++){
		if(!hotmusic[i].checked || !hotmusic[i].disabled){
			document.getElementById(btname).checked=false;
			return;
		}
	}
	document.getElementById(btname).checked=true;
}

function local_order_music(playtype,checkboxname,linkname){
	var selectname = document.getElementsByName(checkboxname);
	var linkname = document.getElementsByName(linkname);
	var flag = false;
	for(var i=0;i<selectname.length;i++){
		if(selectname[i].checked == true){
			flag = true;
			break;
		}
	}
	if(!flag){
		alert("请先选择歌曲再播放！");
		return;
	}
	for(var i=0;i<selectname.length;i++){
		if(selectname[i].checked == true){
			var url = linkname[i].href;
			if(url==''){
				continue;
			}
			url = url.substring(0,url.indexOf('(')+1)+playtype+url.substring(url.indexOf(','));
			if(isFirefox=navigator.userAgent.indexOf("Firefox")>0){ 
			url = decodeURI(url);
			}
			eval(url);
		}
	}
	if(playtype==4||playtype==5){
		win_open();
	}else if(playtype==11){
		win_open_mp3();
	}
}