function f() {
	var a=document.getElementById("f");
	a.style.top  = document.body.scrollTop+350;
}

function hiddenDiv()
{
	document.getElementById('f').style.visibility='hidden';
}

function zoomInOutDiv()
{
	if (document.getElementById('tool1').innerHTML == "")
	{
		document.getElementById('tool1').innerHTML = '<img src="images/Default/default_tool_3.gif" usemap="#MapTool" border="0" >';
		document.getElementById('imgGjx').src = "images/Default/default_tool_1A.gif";
		document.getElementById('imgZoomInOut').src = "images/Default/default_tool_jian1A.gif";
		document.getElementById('imgExit').src = "images/Default/default_tool_X1A.gif";
		document.getElementById('imgZoomInOut').src = "images/Default/default_tool_jian1A.gif";
	}
	else
	{
		document.getElementById('tool1').innerHTML = "";
		document.getElementById('imgGjx').src = "images/Default/default_tool_1B.gif";
		document.getElementById('imgZoomInOut').src = "images/Default/default_tool_jian1B.gif";
		document.getElementById('imgExit').src = "images/Default/default_tool_X1B.gif";
		document.getElementById('imgZoomInOut').src = "images/Default/default_tool_jia1B.gif";
	}
}