function replaceData(){
var data=[
{oldkey:"pp1",newkey:"宏基"},
{oldkey:"pp2",newkey:"联想"}
];

 var stringObj=self.document.body.innerHTML;
 for(var i=0;i<data.length;i++)
 {
   var reg = new RegExp(data[i].oldkey, "g");
   stringObj = stringObj.replace(reg,data[i].newkey);
 }
//alert(stringObj)
self.document.body.innerHTML=stringObj;
}
replaceData()