var IsIE=navigator.userAgent.toLowerCase().indexOf("msie")>0?true:false;
var IsFF=navigator.userAgent.toLowerCase().indexOf("firefox")>0?true:false;
String.prototype.trim=function(){ return this.replace(/(^\s*)|(\s*$)/g,"");};
var util={
    $:function(){
        var elements=new Array();
        for(var i=0;i<arguments.length;i++) 
        { 
            var element=arguments[i];
            if(typeof(arguments[i])=='string'){
                element=document.getElementById(arguments[i]);
            }if(arguments.length==1){ 
                return element;
            }
            elements.Push(element);
        }
        return elements;
    },
    getObj:function(objName){
        if(document.getElementById){ return eval('document.getElementById("'+objName+'")'); }
        else if(document.layers){ return eval("document.layers['"+objName+"']"); } 
        else{ return eval('document.all.'+objName);}
    }
};
/*设为首页---加入收藏*/
function setHomepage(fUrl){
　 if (IsIE){
        document.body.style.behavior = "url(#default#homepage)";
        document.body.setHomePage(fUrl);
　 }
　 else if(IsFF){
        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",fUrl);
　 }
}
function faddFavorite(fUrl,fTitle){　
　 if (IsIE){
　　    window.external.addFavorite(fUrl,fTitle);
　 }
　 else if(IsFF){
        window.sidebar.addPanel(fTitle,fUrl,"");
　 }
}
//图片预览
function file_preview(fileBrowser)
{
    var imgSrc="";
    var IsImgType=/.gif|.jpg|.png|.jpeg|.bmp/.test(fileBrowser.value.toLowerCase());
    if(IsImgType){
        var prodImg=util.getObj("prodImg");
        if(IsFF){
           prodImg.src=fileBrowser.files[0].getAsDataURL();
        }else{
           prodImg.src="file:///"+fileBrowser.value.replace(/\\/g,"/");
        }
    }
}
/*cookie操作js对象*/
var docookie={
    addCookie:function(name,value,expireDays){
        //var cookieString=name+"="+escape(value)+"; domain=.testmart.cn";
        var cookieString=name+"="+escape(value);
        if(expireDays>0){
            var date=new Date();
            date.setTime(date.getTime()+expireDays*24*3600*1000);
            cookieString=cookieString+"; expires="+date.toGMTString()+"; path=/";
        }   
        document.cookie=cookieString;
    },
    getCookie:function(name){
        var strCookie=document.cookie;
        var arrCookie=strCookie.split("; ");
        for(var i=0;i<arrCookie.length;i++){
            var arr=arrCookie[i].split("=");
            if(arr[0]==name)return arr[1];
        }
        return "";
    },
   delCookie:function(name){
        var date=new Date();
        date.setTime(date.getTime()-10000);
        //document.cookie=name+"=; domain=.testmart.cn; expires="+date.toGMTString()+"; path=/";
        document.cookie=name+"=; expires="+date.toGMTString()+"; path=/";
   }
}