function showHideDiv()    
{        
var divstyle = new String();        
divstyle = document.getElementById
("footer-seo").style.visibility;        
if(divstyle.toLowerCase()=="visible" || divstyle == "")        
{            
document.getElementById
("footer-seo").style.visibility = "hidden";        
}        
else        
{            
document.getElementById
("footer-seo").style.visibility = "visible";        
}    
}