function mapShowPopup(id)                               
{
this.ie = document.all ? 1 : 0
this.ns4 = document.layers ? 1 : 0
this.dom = document.getElementById ? 1 : 0
 
// var s = this.ns4 ? this.container : this.container.style
// s.visibility = "visible"

mapHideAll();

document.getElementById(id).style.visibility = "visible";

return false;
}  

function mapHidePopup(id)                               
{
this.ie = document.all ? 1 : 0
this.ns4 = document.layers ? 1 : 0
this.dom = document.getElementById ? 1 : 0
 
// var s = this.ns4 ? this.container : this.container.style
// s.visibility = "visible"

document.getElementById(id).style.visibility = "hidden";

return false;

}  

function mapHideAll()                               
{
	mapHidePopup('map_computer_center_popup');
	mapHidePopup('map_ame_popup');
	mapHidePopup('map_ece_popup');
	mapHidePopup('map_edu_popup');
	mapHidePopup('map_engr_popup');
	mapHidePopup('map_ilc_popup');
	mapHidePopup('map_info_commons_popup');
	mapHidePopup('map_shantz_popup');
	mapHidePopup('map_lapaz_popup');
	mapHidePopup('map_oldmain_popup');
	mapHidePopup('map_mcclelland_popup');
	mapHidePopup('map_mlk_popup');
	mapHidePopup('map_music_popup');
}