/**  显示版面导航和标题导航菜单  **/
function setNavigationDIV(displayType, srcId, destId){
	document.getElementById(destId).style.display = 'none';
	if (displayType == 'block')
	{
		var top = document.getElementById(srcId).offsetTop;
		var height = document.getElementById(srcId).offsetHeight;

		var screenWidth = window.screen.width;
		var marginWidth = screenWidth - 1002;
		if (marginWidth < 0)
		{
			marginWidth = 0;
		}
		marginWidth = marginWidth / 2;
		var left = 1002 + marginWidth - 250;

		document.getElementById(destId).style.left= (left) + "px";
		document.getElementById(destId).style.top= (top + height) + "px";
	}
	document.getElementById(destId).style.display = displayType;
}