function init_dw_Scroll() {
    var wndo = new dw_scrollObj('contentScroll', 'innerContentScroll');
    wndo.setUpScrollControls('scrollLinks');
}

// if code supported, link in the style sheet and call the init function onload
if ( dw_scrollObj.isSupported() ) {
    //dw_writeStyleSheet('css/scroll.css');
    dw_Event.add( window, 'load', init_dw_Scroll);
}

function changeImage(imageId){
	document.getElementById('bigImage').src=document.getElementById(imageId).alt;
	init_dw_Scroll();
}