var channelShowedDiv5 = 1;
		function changeChannelDiv5(DivKey5)
		{
		if(channelShowedDiv5!=DivKey5){
		document.getElementById("channelBtn_5"+channelShowedDiv5).className ="title002_off";
		document.getElementById("channelBtn_5"+DivKey5).className ="title002_on strong";
		document.getElementById("channelDiv_5"+channelShowedDiv5).style.display = "none";
		document.getElementById("channelDiv_5"+DivKey5).style.display = "block";
		channelShowedDiv5 = DivKey5;
		return false;
		}else{
		return true;
		}
		}