function isKong() {
	var s = document.getElementsByName('keyword')[0].value;
	var ss = '';
	for (var i = 0; i < s.length; i ++) {
		if (s.charAt(i) != '') {
			ss += s.charAt(i);
		}
	}
	if (ss.length == 0) {
		alert('请填写搜索内容');
		return false;
	} else {
		return true;
	}
}

/*搜索select*/
function selectSearchTypeOO(){
	var sTCont;
	this.mShow = function(){$("#searchTypeCont").slideToggle("fast");$("#searchTypeS").focus();}
	this.mHide = function(txt,num){window.clearTimeout(mTime);$("#searchTypeCont").slideUp("fast");$("#searchType").val(num);$("#searchTypeS").val(txt);$("#textfield").focus();}
	this.mBlur = function(){mTime = setTimeout('selectSearchType.mBfunt()',500)}
	this.mBfunt = function(){window.clearTimeout(mTime);$("#searchTypeCont").slideUp("fast");}
}
var selectSearchType = new selectSearchTypeOO();

/*设置首页*/
function setHomepage(){
    var t = document.location;
    if (t=='') t = url;
    if (document.all) {
        document.body.style.behavior = 'url(#default#homepage)';
        document.body.setHomePage(t);
        }
        else if (window.sidebar) {
            if (window.netscape) {
            try { netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            }
            catch (e) {
            alert("该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true");
            }
        }
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
        prefs.setCharPref('browser.startup.homepage', t);
    }
}