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/**
  * JS加密解密类
  * author:a7
  */
var PWUtil=function (){
  this.key = "19-45896521-88-57125675-0603";//加密解密钥匙(重要)
  this.klen = this.key.len;
  /**
   *加密方法
   *@param pas 明文
   */
  this.encode=function(pas){
  alert(pas);
  var ps = "";
  var e = "";
  //加密
  for(var i=0;i<pas.length;i++){
var d = pas[i];
var c = this.key[i];
e = d^c;
if(d > 9 || d < 0){
e = d&0x07;
}else{
e = d^c;
}
/*转换成数值前,保证最高位非0*/
if(i==0 && e==0){
e = 2;
}
if(i==pas.length/2 && e==0){
e = 6;
}
ps+=e;
//ps+=String.fromCharCode(d^c);
  }
  alert(ps);
  var data1 = "";
  var data2 = "";
  var j = 0;
  //alert("ps"+ps);
  var stringArray = ps.split("");
  while(j < (stringArray.length/2)){
  data1 += stringArray[j];
  data2 += stringArray[j+stringArray.length/2];
    j++;
  }
  alert("dataOne"+data1);
  alert("dataTwo"+data2);
  var decData1 = data1&data2;
  var decData2 = data1^data2;
  var result = decData1+""+decData2;
  return result;
  }
}