function navigateroman(direction)
{ 
    var current = document.getElementById("selectroman").selectedIndex; 
    
    var newindex; 
    
    if(direction == "next")
        newindex = current + 1;
        
    else if(direction == "prev")
        newindex = current - 1; 
       
    else 
        newindex = current; 
        
    if(newindex < 0)
       newindex = document.getElementById("selectroman").length-1;
    
    if(newindex > document.getElementById("selectroman").length-1)
        newindex = 0; 
    
    window.location = "default.asp?cid=" + document.getElementById("selectroman").options[newindex].value;
 
}