var myNum;
var b;
b = myNum;



$(function(){
if($.browser.msie && $.browser.version == 6){
}else{
			
//JSON 読み込み
$.getJSON('./plan/top_cm.json',function(data){

	//オンロード処理
	var myTotal = data.length;
	var myLoad = data.length;
	if(myTotal <= 20){
		myLoad = 20;
	}else{
	}

	for (var i = 0; i < myLoad ; i++){
	b = myNum;
	myNum = Math.floor(Math.random() * myTotal );
	while( b == myNum ){
		 myNum = Math.floor(Math.random() * myTotal ); 
        }
	var targ = '<div id="targ_' +[myNum] +'" style="display:none;" class="twins"></div>';
	var targ_id = '#targ_' + [myNum];
		$('#cm-content').prepend(targ);
		$(targ_id).prepend(data[myNum].htm);
		$(targ_id).slideDown(0);
		}

	//上ボタンクリック・下にスライド
	$("#down").click(function(){

	var myTotal = data.length;
	b = myNum;
	myNum = Math.floor(Math.random() * myTotal );
	while( b == myNum ){
		 myNum = Math.floor(Math.random() * myTotal ); 
        }

	var targ = '<div id="targ_' +myNum +'" style="display:none;" class="twins"></div>';
	var targ_id = '#targ_' + myNum;
	$('#cm-content').prepend(targ);
	$(targ_id).html(data[myNum].htm);
	$(targ_id).slideDown(1000);
	
	});
	
	
	//下ボタンクリック・上にスライド
	$("#up").click(function(){
		var del_num;
			del_num = 0;
			while ($('#cm-content .twins:eq(' +del_num + ')').is(":hidden")) {
				del_num = del_num +1;
			}	
			$('#cm-content .twins:eq(' + del_num + ')').slideUp(1000);
	});

	
	//ループスイッチ

	//オンロード
	LOOP = setInterval("loadIMG()",5000);
 	//マウスオーバー　オフ
	$("#down,#up").mouseover(function(){
		window.clearInterval(LOOP);
		LOOP ="";
	});
	//マウスアウト　オン
	$("#down,#up").mouseout(function(){
		if(LOOP==""){
		LOOP = setInterval("loadIMG()",5000);
		}
	});
 
});//END JSON

}// END ifIE
});//END $


//ループ・ファンクション
function loadIMG(){
$.getJSON('./plan/top_cm.json',function(data){
	var myTotal = data.length;
	b = myNum;
	myNum = Math.floor(Math.random() * myTotal );
	while( b == myNum ){
		 myNum = Math.floor(Math.random() * myTotal ); 
        }
	var targ = '<div id="targ_' +myNum +'" style="display:none;" class="twins"></div>';
	var targ_id = '#targ_' + myNum;
	$('#cm-content').prepend(targ);
	$(targ_id).html(data[myNum].htm);
	$(targ_id).slideDown(6000);
});
}