function get_cookie(name) {
	cookiename = name + '=';
	cookiepos = document.cookie.indexOf(cookiename);
	if(cookiepos != -1) {
		cookiestart =cookiepos+cookiename.length;
		cookieend = document.cookie.indexOf(';', cookiestart);
		if(cookieend == -1) {
			cookieend = document.cookie.length;
		}
		return unescape(document.cookie.substring(cookiestart, cookieend));
	}
	return '';
}
function set_cookie(name, value) {
	expires = new Date();
	expires.setTime(expires.getTime() + 2592000);
	document.cookie = name + "=" + value + "; path=/; expires=" + expires.toGMTString();
}
function gete(id) {
	return document.getElementById(id);
}
var collapsed=get_cookie('cdb_collapse');

function collapse_change(menucount) {
	if(gete('menu_' + menucount).style.display == 'none') {
		gete('menu_' + menucount).style.display = '';collapsed = collapsed.replace('[' + menucount + ']' , '');
		gete('menuimg_' + menucount).src = '/template/images/jt1.gif';
	} else {
		gete('menu_' + menucount).style.display = 'none';collapsed += '[' + menucount + ']';
		gete('menuimg_' + menucount).src = 'images/jt2.gif';
	}
	set_cookie('cdb_collapse', collapsed);
}

function zoomtextarea(objname, zoom) {
	zoomsize = zoom ? 10 : -10;
	obj = document.getElementById(objname);
	if(obj.rows + zoomsize > 0 && obj.cols + zoomsize * 3 > 0) {
		obj.rows += zoomsize;
		obj.cols += zoomsize * 3;
	}
}