// function getStyleObject(string) -> returns style object
//  given a string containing the id of an object
//  the function returns the stylesheet of that object
//  or false if it can't find a stylesheet.  Handles
//  cross-browser compatibility issues.
//
function getStyleObject(objectId) {
  // checkW3C DOM, then MSIE 4, then NN 4.
  //
  if(document.getElementById && document.getElementById(objectId)) {
	return document.getElementById(objectId).style;
   }
   else if (document.all && document.all(objectId)) {  
	return document.all(objectId).style;
   } 
   else if (document.layers && document.layers[objectId]) { 
	return document.layers[objectId];
   } else {
	return false;
   }
}

function changeObjectDisplay(objectId, newDisplay) {
    // first get the object's stylesheet
    var styleObject = getStyleObject(objectId);

    // then if we find a stylesheet, set its display
    // as requested
    //
    if (styleObject) {
	styleObject.display = newDisplay;
	return true;
    } else {
	return false;
    }
}

function OnOff(div_id, disp)
{
  var style_sheet = getStyleObject(div_id);
  changeObjectDisplay(div_id,disp);
  return false;
}

function hidepackages()
{
changeObjectDisplay("callalilly","none");
changeObjectDisplay("gerberdaisy","none");
changeObjectDisplay("sweetpea","none");
changeObjectDisplay("peony","none");
}