// window.onscroll = function testScroll(){
	// if (gid("mttb_div")) gid("mttb_div").style.bottom = 5 - document.body.scrollTop;
	// }

function mttb() {
	o = window.document.getElementById("mttb_hold");
	if  ( o.style.display == "block" ) {
		o.style.display = "none";
		window.document.getElementById("mttb_hold_min").style.display = "block";
		window.document.getElementById("mttb_div").style.height = "15px";
		} else {
		o.style.display = "block";
		window.document.getElementById("mttb_hold_min").style.display = "none";
		window.document.getElementById("mttb_div").style.height = "160px";
		}
	}