JavaScript获取当前url根目录(路径)

function getRootPath(){
  var curPageUrl = window.document.location.href;
  var rootPath = curPageUrl.split("//")[0] + curPageUrl.split("//")[1].split("/")[0] 
          + curPageUrl.split("//")[1].split("/")[1];
  return rootPath;
}

function getRootPath_web() {
 //获取当前网址，如： http://localhost:8083/uimcardprj/share/meun.jsp
 var curWwwPath = window.document.location.href;
 //获取主机地址之后的目录，如： uimcardprj/share/meun.jsp
 var pathName = window.document.location.pathname;
 var pos = curWwwPath.indexOf(pathName);
 //获取主机地址，如： http://localhost:8083
 var localhostPaht = curWwwPath.substring(0, pos);
 //获取带"/"的项目名，如：/uimcardprj
 var projectName = pathName.substring(0, pathName.substr(1).indexOf('/') + 1);
 return (localhostPaht + projectName);
}

function getRootPath_dc() {
 var pathName = window.location.pathname.substring(1);
 var webName = pathName == '' ? '' : pathName.substring(0, pathName.indexOf('/'));
 if (webName == "") {
  return window.location.protocol + '//' + window.location.host;
 }
 else {
  return window.location.protocol + '//' + window.location.host + '/' + webName;
 }
}

var pathName = window.document.location.pathname;
var projectName = pathName.substring(1, pathName.substr(1).indexOf('/') + 1);
var ad_projectlist = ',,web,html5,css,';
if(ad_projectlist.indexOf(','+projectName+',') < 0){
 alert("web,html5,css几个目录代码不执行");
}