/*
Used in webforms to select other forms from a dropdown.
Option values contain actual form names, so option text is flexible.
*/
function dbtw_form_change_onvalue(select_object, action, params)
{
   var new_form = escape( select_object.options[select_object.selectedIndex].value );
   var i = new_form.indexOf( "+" );
   while ( i >= 0 )
   {
	   new_form = new_form.substring( 0, i ) +
	               "%2B" +
	               new_form.substring( i+1, new_form.length );
	   i = new_form.indexOf( "+" );
   }

   var form_key = "RF=";
   var n1 = params.indexOf( form_key );
   var n2 = n1 + form_key.length;
   var n3 = params.indexOf( "&", n2 );
   var n4 = params.length;
   var form_change_url = action + "?AC=CHANGE_REPORT" +
                           params.substring( 0, n2 ) +
                           new_form +
                           params.substring( n3, n4 );
	window.location.href = form_change_url;
}