One Function which is defined in a text file is not working on Run script for Pega 8.2 while we are clicking a row in a List View .

The Function is actually defined within a text file .Below is the definition of the function .

function GetDetails(nRow){
var url = requestURI + "?pyActivity=Chartis-FW-OneClaimCore-Data-UserMaint-USER_MAINT.UserMaintenanceRowSelected&RowNo="+nRow;
//openUrlInSpace(url);
window.open(url,'_self');
}