function date_time(){
	var d = new Date();
	var s = d.getSeconds();
	var m = d.getMinutes();
	var h = d.getHours();
	if(s<10){
		s= '0'+s;
	}
	if(m<10){
		m='0'+m;
	}
	var str =h + ':' + m + ':' +s;
	document.getElementById('show_time').innerHTML= str;
	setTimeout("date_time()",1000);
}
function showHideItems(myItem, myButton)
{
var myItem = document.getElementById(myItem);
var te = myButton
var myButton = document.getElementById(myButton);
if (myItem.style.display != "block")
{
	myItem.style.display = "block";
	swapImage(te,"minus");
}
else
{
	myItem.style.display = "none";
	swapImage(te,"plus");
}
}
function swapImage(myImage, state)
{
if (state == "minus")
    {
    document.getElementById(myImage).style.background = "url(images/buttonbg_up.jpg)";
    }
else
    {
    document.getElementById(myImage).style.background = "url(images/buttonbg_drop.jpg)";
    }
}