// JavaScript Document
function check(){
	var ss=document.getElementById('submit');
	var aa=document.getElementById('username').value;
	var bb=document.getElementById('useremail').value;
	var cc=document.getElementById('usercomment').value;
	ss.disabled=(aa==''||bb==''||cc=='');
}
function a(){
//var s;
//创建一个DIV,改名为 overlay 这个是透明的层	
var oDiv =document.createElement("div");
oDiv.id = "overlay";
document.body.appendChild(oDiv);
document.getElementById("overlay").style.height=document.body.scrollHeight;
document.getElementById("overlay").style.width=document.body.scrollWidth; 
document.getElementById("floatdiv").style.display="block";
document.getElementById("floatdiv").style.top=(document.body.clientHeight-450);
document.getElementById("floatdiv").style.left=(document.body.clientWidth/2-150);
document.getElementById("floatdiv").innerHTML = "数据发送中。。。<br /><button onclick=\"closediv()\">终止...</button>"
if(window.ActiveXObject){
	var http_request = new ActiveXObject("Microsoft.XMLHTTP"); 
}else if(window.XMLHttpRequest){
	var http_request = new XMLHttpRequest();
}
	http_request.open('get','/comment.asp?username='+escape(document.getElementById("username").value)+'&useremail='+escape(document.getElementById("useremail").value)+'&userweb='+escape(document.getElementById("userweb").value)+'&comment='+escape(document.getElementById("usercomment").value)+'&a_id='+escape(document.getElementById("a_id").value)+'',false);
	http_request.send(null); 
	document.getElementById("floatdiv").innerHTML="评论发送成功<br /><button onclick=\"closediv()\">确定</button>";
	document.getElementById("morecomment").innerHTML=unescape(http_request.responseText);
	document.getElementById("username").value="";
	document.getElementById("useremail").value="";
	document.getElementById("userweb").value="";
	document.getElementById("usercomment").value="";
//document.write ('/comment.asp?username='+document.getElementById("username").value+'&useremail='+document.getElementById("useremail").value+'&uerweb='+document.getElementById("userweb").value+'&comment='+document.getElementById("usercomment").value+'&a_id='+document.getElementById("a_id").value+'');
}
function closediv()
{
	var overlay = document.getElementById("overlay");	
	//var floatdiv = document.getElementByid("floatdiv");
	if(overlay != null)
	{
		overlay.outerHTML = "";
		document.getElementById("floatdiv").style.display="none";
	}
	//floatdiv.style.display="none";
}


function Preview(obj) 
{ 
  var TestWin=open(''); 
  TestWin.document.write(obj.value); 
} 

function copyCode(obj) { 
    var rng = document.body.createTextRange(); 
    rng.moveToElementText(obj); 
    rng.scrollIntoView(); 
    rng.select(); 
    rng.execCommand("Copy"); 
    rng.collapse(false); 
} 

function saveCode(obj) { 
    var winname = window.open('', '_blank', 'top=10000'); 
    winname.document.open('text/html', 'replace'); 
    winname.document.writeln(obj.value); 
    winname.document.execCommand('saveas','','lao8.org'); 
    winname.close(); 
}