// JavaScript Document
function getURLParam(strParamName){//get URL para
  var strReturn = "";
  var strHref = window.location.href;
//	var strHref = location.href;
  if ( strHref.indexOf("?") > -1 ){
    var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
    var aQueryString = strQueryString.split("&");
    for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
      if (
aQueryString[iParam].indexOf(strParamName.toLowerCase() + "=") > -1 ){
        var aParam = aQueryString[iParam].split("=");
        strReturn = aParam[1];
        break;
      }
    }
  }
  return unescape(strReturn);
}

//去左右空白
function trim(strvalue) {
    ptntrim = /(^\s*)|(\s*$)/g;
    return strvalue.replace(ptntrim,"");
}
//去左空白
function ltrim(strvalue) {
    ptnltrim = /^\s*/g;
    return strvalue.replace(ptnltrim,"");
}
//去右空白
    function ltrim(strvalue) {
    ptnrtrim = /\s$/g;
    return strvalue.replace(ptnrtrim,"");
}
// simple UUID generator
function uniqid() {
	var newDate = new Date;   
    return newDate.getTime().toString();
}