function showBox(what)
  {  
    var width = document.documentElement.clientWidth + document.documentElement.scrollLeft;
	var useragent = navigator.userAgent;
    var layer = document.createElement('div');
    layer.style.zIndex = 2;
    layer.id = 'layer';
    layer.style.position = 'absolute';
    layer.style.top = '0px';
    layer.style.left = '0px';
	var pos = useragent.indexOf('Mozilla');
	if (pos > -1) {layer.style.height = document.documentElement.scrollHeight + 'px';}
	else layer.style.height = document.documentElement.clientHeight + 'px';
    layer.style.width = width + 'px';
    layer.style.backgroundColor = 'black';
    layer.style.opacity = '.6';
    layer.style.filter += ("progid:DXImageTransform.Microsoft.Alpha(opacity=60)");
    document.body.appendChild(layer);  
    
    var div = document.createElement('div');
    div.style.zIndex = 3;
    div.id = 'box';
    div.style.position = (navigator.userAgent.indexOf('MSIE 6') > -1) ? 'absolute' : 'fixed';
    div.style.top = '200px';
    div.style.left = (width / 2) - (400 / 2) + 'px';	
    div.style.height = 'auto';
    div.style.width = '400px';
    //div.style.backgroundColor = 'white';
	div.style.background = '#cccccc';
    div.style.border = '2px solid white';
    div.style.padding = '20px';
    document.body.appendChild(div);
    var a = document.createElement('a');
    a.innerHTML = '<div style="float:right;">Close</div><br>';
    a.href = 'javascript:void(0)';
    a.onclick = function() 
    {
      document.body.removeChild(document.getElementById('layer'));
      document.body.removeChild(document.getElementById('box'));
    };
      
    div.appendChild(a);
    var p = document.createElement('div');
    p.innerHTML = '	<form method="POST" action="index.php"><input type="hidden" name="login" value="1"/><table> <tr><td>Username:</td><td><input type="text" name="user"/></td></tr><tr><td>Password:</td><td><input type="password" name="pass"/></td></tr><tr><td></td><td><input type="submit" value="Login" onClick="document.forms[0].submit"></td></tr></table></form>';
    div.appendChild(p);
    

  }