var Shadow=new Function();Shadow.prototype={show:function(){shade=document.createElement('div');shade.className='shade';document.body.appendChild(shade);var position=function(){var ch=document.body.clientHeight,sh=document.body.scrollHeight,st=document.body.scrollTop;shade.style.height=(sh>ch?sh:ch)+'px';if(window.ActiveXObject){shade.style.width=document.documentElement.clientWidth+'px';shade.innerHTML="<iframe class='iframeBackStyle'></iframe>";}else{shade.style.width=document.body.clientWidth+'px';}}
window.onresize=position;shade.style.display='block';position();},remove:function(){shade.style.display='none';document.body.removeChild(shade);}}