function QianboMenu(id){if(!document.getElementById||!document.getElementsByTagName)return false;this.menu=document.getElementById(id);this.submenus=this.menu.getElementsByTagName("div");this.remember=true;this.speed=3;this.markCurrent=true;this.oneSmOnly=true;};QianboMenu.prototype.init=function(){var mainInstance=this;for(var i=0;i<this.submenus.length;i++)this.submenus[i].getElementsByTagName("span")[0].onclick=function(){mainInstance.toggleMenu(this.parentNode);};if(this.markCurrent){var links=this.menu.getElementsByTagName("a");for(var i=0;i<links.length;i++)if(links[i].href==document.location.href){links[i].className="current";break;}};if(this.remember){var regex=new RegExp("MenuStyle_"+encodeURIComponent(this.menu.id)+"=([01]+)");var match=regex.exec(document.cookie);if(match){var states=match[1].split("");for(var i=0;i<states.length;i++)this.submenus[i].className=(states[i]==0?"collapsed":"");}}};QianboMenu.prototype.toggleMenu=function(submenu){if(submenu.className=="collapsed")this.expandMenu(submenu);else this.collapseMenu(submenu);};QianboMenu.prototype.expandMenu=function(submenu){var fullHeight=submenu.getElementsByTagName("span")[0].offsetHeight;var links=submenu.getElementsByTagName("a");for(var i=0;i<links.length;i++)fullHeight+=links[i].offsetHeight;var moveBy=Math.round(this.speed*links.length);var mainInstance=this;var intId=setInterval(function(){var curHeight=submenu.offsetHeight;var newHeight=curHeight+moveBy;if(newHeight<fullHeight)submenu.style.height=newHeight+"px";else{clearInterval(intId);submenu.style.height="";submenu.className="";mainInstance.memorize();}},30);this.collapseOthers(submenu);};QianboMenu.prototype.collapseMenu=function(submenu){var minHeight=submenu.getElementsByTagName("span")[0].offsetHeight;var moveBy=Math.round(this.speed*submenu.getElementsByTagName("a").length);var mainInstance=this;var intId=setInterval(function(){var curHeight=submenu.offsetHeight;var newHeight=curHeight-moveBy;if(newHeight>minHeight)submenu.style.height=newHeight+"px";else{clearInterval(intId);submenu.style.height="";submenu.className="collapsed";mainInstance.memorize();}},30);};QianboMenu.prototype.collapseOthers=function(submenu){if(this.oneSmOnly){for(var i=0;i<this.submenus.length;i++)if(this.submenus[i]!=submenu&&this.submenus[i].className!="collapsed")this.collapseMenu(this.submenus[i]);}};QianboMenu.prototype.expandAll=function(){var oldOneSmOnly=this.oneSmOnly;this.oneSmOnly=false;for(var i=0;i<this.submenus.length;i++)if(this.submenus[i].className=="collapsed")this.expandMenu(this.submenus[i]);this.oneSmOnly=oldOneSmOnly;};QianboMenu.prototype.collapseAll=function(){for(var i=0;i<this.submenus.length;i++)if(this.submenus[i].className!="collapsed")this.collapseMenu(this.submenus[i]);};QianboMenu.prototype.memorize=function(){if(this.remember){var states=new Array();for(var i=0;i<this.submenus.length;i++)states.push(this.submenus[i].className=="collapsed"?0:1);var d=new Date();d.setTime(d.getTime()+(30*24*60*60*1000));document.cookie="MenuStyle_"+encodeURIComponent(this.menu.id)+"="+states.join("")+"; expires="+d.toGMTString()+"; path=/";}};