function showBox()
{  
	if (window.XMLHttpRequest) //if modern browsers- IE7, Firefox, Safari, Opera 8+ etc
		document.body.style.overflow="hidden";
	else //if IE6 and below, just scroll to top of page to ensure interstitial is in focus
		window.scrollTo(0,0);
	
    var width = document.documentElement.clientWidth + document.documentElement.scrollLeft;

    var layer = document.createElement('div');
    layer.style.zIndex = 2;
    layer.id = 'layer';
    layer.style.position = 'absolute';
    layer.style.top = '0px';
    layer.style.left = '0px';
    layer.style.height = document.documentElement.scrollHeight + 'px';
    layer.style.width = width + 'px';
    layer.style.backgroundColor = 'black';
    layer.style.opacity = '.5';
    layer.style.filter += ("progid:DXImageTransform.Microsoft.Alpha(opacity=50)");
    document.body.appendChild(layer);  
    
    var div = document.createElement('div');
    div.style.zIndex = 10;
    div.id = 'box';
    div.style.position = (navigator.userAgent.indexOf('MSIE 6') > -1) ? 'absolute' : 'fixed';
    div.style.top = '50px';
    div.style.left = (width / 2) - (700 / 2) + 'px';	
    div.style.height = '500px';
    div.style.width = '700px';
    div.style.backgroundColor = '#0D4D94';
    div.style.border = '2px solid black';
    div.style.padding = '0px';
    document.body.appendChild(div);  
    
    var y = document.createElement('y');
    y.innerHTML = '<img src="26mwruzgar_popup.jpg">';
    div.appendChild(y);
    
    var a = document.createElement('a');
    a.innerHTML = '<img src="modal_kapat.png" border="0">';
    a.href = 'javascript:void(0); ';
    a.onclick = function() 
    {
      document.body.removeChild(document.getElementById('layer'));
      document.body.removeChild(document.getElementById('box'));
	  if (window.XMLHttpRequest) 
	  	document.body.style.overflow='visible';
    };
      
    div.appendChild(a);
  }