var QueryString = new Array();
QueryString["_"]="";

function unspace( qs_element ) {
 return qs_element.split( '+' ).join( ' ' );
 }
 
if ( location.search.length > 1 ) 
{
      var qs_query = location.search.substring( 1, location.search.length );
      var qs_pairs = qs_query.split( '&' );
   
    for ( var qs_index = 0; qs_index < qs_pairs.length; qs_index++ ) 
    {
	  var qs_element = qs_pairs[qs_index].split( '=' );
        QueryString[qs_element[0]] = unspace( unescape( qs_element[1] ) );
    }
 }
	 

function showHide ( name, m )
{   document.getElementById(name).style.display=(m?'block':'none'); 
}

function isVisible ( name )
{
    return !(document.getElementById(name).style.display=='none');
}