var tid;
function initScrollSynchronization () {
	tid = setInterval('syncFrame()', 5);
}
function syncFrame () {
	if ((document.all && !window.opera) || navigator.userAgent.indexOf("Firefox")|| navigator.userAgent.indexOf("Safari") != -1) {
		
		document.getElementById('menu').scrollTop=document.getElementById('content').scrollTop;
		document.getElementById('menu').scrollLeft=document.getElementById('content').scrollLeft;
	}else {
		
		document.getElementById('menu').pageYOffset=document.getElementById('content').pageYOffset;
		document.getElementById('menu').pageXOffset= document.getElementById('content').pageXOffset;
	}
}