function ShowHide(id, visibility) 
	{ 
    	obj = document.getElementsByTagName("div"); 
    	obj[id].style.visibility = visibility; 
	} 
	
function doPopUp(frame)
	{
		ShowHide('popup_content', 'visible'); 
		document.getElementById('pFrame').src = frame;
	}
	
	
function seton(img)
	{ img.src = img.src.replace(/\.gif/, "_over.gif"); }

function setactive(img)
	{ img.src = img.src.replace(/\_over.gif/, "_clicked.gif"); }

function setoff(img)
	{ img.src = img.src.replace(/\_over.gif/, ".gif"); }
			
function setJon(img)
	{ img.src = img.src.replace(/\.jpg/, "_over.jpg"); }

function setJoff(img)
{ 
	if(img.src.indexOf("over") > 0)
	{
	img.src = img.src.replace(/\_over.jpg/, ".jpg"); 
	} else if(img.src.indexOf("clicked") > 0)
	{
	img.src = img.src.replace(/\_clicked.jpg/, ".jpg"); 
	} 
} 
			
function setJactive(img)
	{ img.src = img.src.replace(/\_over.jpg/, "_clicked.jpg"); }