function over(){
	this.className="tut";
}
function out(){
	this.className="tit";
}
function clic(){
	o = this.nextSibling;
	if(o.className!="txt")o=o.nextSibling;
	o = o.style;
	if(o.visibility!="visible"){
		if(o.display=='none')o.display='block';
		else o.display='none';
	}
}

function init_collapse() {
	x = document.getElementsByTagName('div');
	l = x.length;
	for (var i=0;i<l;i++) {
		if(x[i].className=="tit"){
			o = x[i].nextSibling;
			if(o.className!="txt")o=o.nextSibling;
			if(o.style.visibility!="visible"){
				x[i].onmouseover = over;
				x[i].onmouseout = out;
				x[i].onclick = clic;
				x[i].title = "click text on-off";
			} else o.style.cursor="auto";
			x[i].onmousedown = new Function("return false;"); 
			x[i].onselectstart = new Function("return false;");
		}
	}
}