function img_btn_switch(img_name, img_src)
{
	document.getElementById(img_name).src = 'images/' + img_src;
}

function disappear(id)
{
	var ie4=document.all;
	var obj=ie4? eval("document.all." + id) : document.getElementById(id);
	obj.style.display="none";
}

function appearblock(id)
{
	var ie4=document.all;
	var obj=ie4? eval("document.all." + id) : document.getElementById(id);
	obj.style.display="block";
}

function appearinline(id)
{
	var ie4=document.all;
	var obj=ie4? eval("document.all." + id) : document.getElementById(id);
	obj.style.display="inline";
}

function appearclose(id1, id2, id3)
{
	var ie4=document.all;var obj1=ie4? eval("document.all." + id1) : document.getElementById(id1);
	var ie4=document.all;var obj2=ie4? eval("document.all." + id2) : document.getElementById(id2);
	obj2.style.display="inline";
	obj2.innerHTML = "<a href=\"javascript:void(0);\" onclick=\"javascript:appearblock('" + id1 + "');disappear('" + id2 + "');disappear('" + id3 + "');\">Close</a><br />";
}