var hasCredit="NO";
function pageload(){
	if(document.postform.credit.value!=""){
		var t=new Date(); 
		document.getElementById("credit_img").innerHTML="<img src=\"credit.php?op=getimage&tm="+t.getTime()+"\" class=\"input4\" style=\" width:65px;\"/>";
		document.getElementById("credit_part").style.display="";
		hasCredit="YES";
		return false;
	}
	if(document.postform.changeuser.value==1){
		changUser();
	}
}
function changUser(){
	var obj=document.getElementById("userpart");
	obj.style.display="";	
	obj=document.getElementById("passwdpart");
	obj.style.display="";
	document.postform.username.value="";
	document.postform.passwd.value="";
	
	document.postform.changeuser.value=1;	
}
function changeImg(){
	var t=new Date(); 
	document.getElementById("credit_img").innerHTML="<img src=\"credit.php?op=getimage&tm="+t.getTime()+"\" class=\"input4\" style=\" width:65px;\"/>";
	document.getElementById("credit_part").style.display="";
	hasCredit="YES";
}
function guestReply(obj){
	if(obj.checked)
	{
		document.postform.username.value="";
		document.postform.username.disabled=true;
		document.postform.passwd.value="";
		document.postform.passwd.disabled=true;
	}
	else
	{
		document.postform.username.disabled=false;
		document.postform.passwd.disabled=false;
	}
}
var clicked=false;
function dosubmit(){	
	if(document.getElementById("userpart").style.display!="none" 
		&& !document.postform.isguestuser.checked){
		if(document.postform.username.value==""){
			alert("用户名不能为空");
			return false;
		}
		if(document.postform.passwd.value==""){
			alert("密码不能为空");	
			return false;
		}
	}
	if(hasCredit=="YES"){
		if(document.postform.credit.value==""){
			alert("验证码不能为空！");
			return false;
		}
	}
	if(clicked){//防止连续点两次
		return false;
	}
	clicked=true;	
	setTimeout("clicked=false",3000);
	//document.domain="xilu.com";
	document.postform.submit();
}
function viewPageSubmit(){	
	if(document.postform.body.value.replace(" ","")==""){
		alert("内容不能为空");
		return false;
	}
	if(document.getElementById("userpart").style.display!="none" 
		&& !document.postform.isguestuser.checked){
		if(document.postform.username.value==""){
			alert("用户名不能为空");
			return false;
		}
		if(document.postform.passwd.value==""){
			alert("密码不能为空");	
			return false;
		}
	}
	if(hasCredit=="YES"){
		if(document.postform.credit.value==""){
			alert("验证码不能为空！");
			return false;
		}
	}
	if(clicked){//防止连续点两次
		return false;
	}
	clicked=true;	
	setTimeout("clicked=false",1000);
	document.domain="xilu.com";
	document.postform.submit();
}
function quickSubmit(event) {
			var evt = event == null ? window.event : event;
			//取得键值
			var key = evt.keyCode;
			if (key == 13)
			{
				try {
					dosubmit();
				}catch(e){}
			}
} 
function viewPageQS(event) {
			var evt = event == null ? window.event : event;
			//取得键值
			var key = evt.keyCode;
			if (key == 13)
			{
				try {
					viewPageSubmit();
				}catch(e){}
			}
} 
function showCredit(){
	var t=new Date(); 
	document.getElementById("credit_img").innerHTML="<img src=\"credit.php?op=getimage&tm="+t.getTime()+"\" class=\"input4\" style=\" width:65px;\"/>";
	document.getElementById("credit_part").style.display="";
	hasCredit="YES";
}