eclipse birt 汉语言参数乱码

document.getElementById("frame_buyInStoreReport").contentWindow.location = encodeURI(encodeURI(src));

var fpurchaseadd = reportContext.getParameterValue("fpurchaseadd");if(fpurchaseadd!=null && fpurchaseadd!=""){	where_sql += " and fpurchaseadd = '"+decodeURI(fpurchaseadd)+"' ";}