function isIE6(){
		var b_version=navigator.appVersion 
		var trim_Version=b_version.split(";")[1].replace(/[ ]/g,""); 
		return (b_version.indexOf("MSIE")!=-1&&trim_Version=="MSIE6.0")?true:false;
	}
	
	function closeBox(){
		document.getElementById('mask').style.display='none';
		document.getElementById('mask_box').style.display='none';
		try{window.detachEvent("onscroll",scall);}catch(e){};
	}

	function openBox(){
		document.getElementById('mask').style.display='';
		document.getElementById("mask").style.height=document.body.scrollHeight+"px";
		if(!isIE6()){
			document.getElementById("mask_box").style.left=(document.documentElement.clientWidth-500)/2+"px";
			document.getElementById('mask_box').style.display='';
		} else{
			document.getElementById('mask_box').style.display='';
			document.getElementById("mask_box").style.left=(950-500)/2+"px";
			document.getElementById("mask_box").style.top=(document.documentElement.scrollTop+(document.documentElement.clientHeight-document.getElementById("mask_box").offsetHeight)/2)+"px";
			window.attachEvent("onscroll",scall);
		}
	}
	
	function scall(){
		document.getElementById("mask_box").style.top=(document.documentElement.scrollTop+(document.documentElement.clientHeight-document.getElementById("mask_box").offsetHeight)/2)+"px";
	}
	
	function closeResultBox(){
		document.getElementById('mask').style.display='none';
		document.getElementById('result_box').style.display='none';
	}

	function openResultBox(_w){
		var w = _w=="undifined"?_w:420;
		document.getElementById('mask').style.display='';
		document.getElementById("mask").style.height=document.body.scrollHeight+"px";
		
		if(!isIE6()){
			document.getElementById("result_box").style.left=(document.documentElement.clientWidth-w)/2+"px";
			document.getElementById('result_box').style.display='';
		} else{
			document.getElementById('result_box').style.display='';
			document.getElementById("result_box").style.left=(950-w)/2+"px";
			document.getElementById("result_box").style.top=(document.documentElement.scrollTop+(document.documentElement.clientHeight-document.getElementById("result_box").offsetHeight)/2)+"px";
		}
	}