Get request parameters using Javascript
This function will parse http query string and return value of requested parameter.
function getQueryParameter ( parameterName ) {
var queryString = window.top.location.search.substring(1);
var parameterName = parameterName + "=";
if ( queryString.length > 0 ) {
begin = queryString.indexOf ( parameterName );
if ( begin != -1 ) {
begin += parameterName.length;
end = queryString.indexOf ( "&" , begin );
if ( end == -1 ) {
end = queryString.length
}
return unescape ( queryString.substring ( begin, end ) );
}
}
return "null";
}