function toggleContentsOn(_id) {
        //alert("on");
		document.getElementById('btnImg1_'+_id).style.display = "block";
		document.getElementById('btnImg'+_id).style.display = "none";
		
        document.getElementById('content_div' + _id).style.display = "block";
        //document.getElementById('frame' + _id).style.height = '224';
        //document.getElementById('frame' + _id).style.width = '660';
        document.getElementById('frame' + _id).style.height = '0';
        document.getElementById('frame' + _id).style.width = '0';
        document.getElementById('blackout').style.display = "block";

        for (i = 1; i <= 5; i++) {
            if (i != _id) {
                document.getElementById('content_div' + i).style.display = "none";
                document.getElementById('frame' + i).style.height = '0';
				
				document.getElementById('btnImg1_'+i).style.display = "none";
				document.getElementById('btnImg'+i).style.display = "block";
            }
        }
    }

    function toggleContentsOff(_id) {
        if (_id == 44) {
        //alert("off");
            for (i = 1; i <= 5; i++) {
                document.getElementById('content_div' + i).style.display = "none";
                document.getElementById('frame' + i).style.height = '0';
				
				document.getElementById('btnImg1_'+i).style.display = "none";
				document.getElementById('btnImg'+i).style.display = "block";
            }
            document.getElementById('blackout').style.display = "none";
        }
        else {
            document.getElementById('content_div' + _id).style.display = "none";
            document.getElementById('frame' + _id).style.height = '0';
            document.getElementById('blackout').style.display = "none";
        }
    }