if (document.images)
    {   
        var index = new Image()
        index.src = "images/index.gif"
        var index_ro = new Image()
        index_ro.src = "images/index_down.gif"

        var wildlife = new Image()
        wildlife.src = "images/wildlife.gif"
        var wildlife_ro = new Image()
        wildlife_ro.src = "images/wildlife_down.gif"
        
        var children = new Image()
        children.src = "images/children.gif"
        var children_ro = new Image()
        children_ro.src = "images/children_down.gif"

        var doorknockers = new Image()
        doorknockers.src = "images/doorknockers.gif"
        var doorknockers_ro = new Image()
        doorknockers_ro.src = "images/doorknockers_down.gif"
		
				var gardenstakes = new Image()
        gardenstakes.src = "images/gardenstakes.gif"
        var gardenstakes_ro = new Image()
        gardenstakes_ro.src = "images/gardenstakes_down.gif"
        
	    	var background = new Image()
        background.src = "images/background.gif"
        var background_ro = new Image()
        background_ro.src = "images/background_down.gif"
       
	    	var awards = new Image()
        awards.src = "images/awards.gif"
        var awards_ro = new Image()
        awards_ro.src = "images/awards_down.gif"

	    	var installations = new Image()
        installations.src = "images/installations.gif"
        var installations_ro = new Image()
        installations_ro.src = "images/installations_down.gif"

        var commissions = new Image()
        commissions.src = "images/commissions.gif"
        var commissions_ro = new Image()
        commissions_ro.src = "images/commissions_down.gif"
        
        var contact = new Image()
        contact.src = "images/contact.gif"
        var contact_ro = new Image()
        contact_ro.src = "images/contact_down.gif"
     }

function inact(imgName)
    {   
    	if (document.images)     
        document[imgName].src = eval(imgName + '.src')
    }

function act(imgName)
    {
        if (document.images)
        document[imgName].src = eval(imgName + '_ro.src')
    }