<!--

var showBookALT = 2;

function setRollingBooks() {
	
	tmIntervalBooks = setInterval(swapBooks, 3000);
}

setRollingBooks();

function showDivBooks(hideObjId, showObjId) {

    document.getElementById("books00").hide();
    document.getElementById("books01").show();
}

function swapBooks() {

    document.getElementById('books00').style.display = "none";
    document.getElementById('books01').style.display = "none";
    document.getElementById('books02').style.display = "none";
	document.getElementById('books03').style.display = "none";
    
    
    if (showBookALT == 1) {
    
        document.getElementById('books00').style.display = "block";
        
        showBookALT = 2;
    } 
    
    else if (showBookALT == 2) {
                
        document.getElementById('books01').style.display = "block";
		
        showBookALT =3;
    } 
    
    else if (showBookALT == 3) {
    
	    document.getElementById('books02').style.display = "block";
		
        showBookALT =4;
	}
	
	else {
		
		document.getElementById('books03').style.display = "block";
        
        showBookALT =1;
    }
}

//-->