function show_on(nodeId)
{
	 var node = document.getElementById(nodeId);
    if (node)
    {
        node.style.display = 'block';
    } 
}
function hide_on(nodeId)
{
    var node = document.getElementById(nodeId);
    if (node)
    {
        node.style.display = 'none';
    } 
}


//show request block

function showBlock()
{
	var div = document.getElementById('myblock');
	div.style.display = "block";
}
function hideBlock()
{
	var div = document.getElementById('myblock');
	div.style.display = 'none';
}
function request()
{
	showBlock();
	setTimeout('hideBlock()', 1500);
}