// 开关隐藏页面
function ShowLayer()
{
	which = document.getElementById("help_hidden");
	
	if (which.style.display == "none")
	{
		document.getElementById('help_hidden').style.display="";
		document.getElementById('help_show').style.display="none";
		document.getElementById('help_icon').innerHTML="-";
	}else{
		document.getElementById('help_hidden').style.display="none";
		document.getElementById('help_show').style.display="";
		document.getElementById('help_icon').innerHTML="+";		
	}
	try 
	{
		parent.iframeResize();       
	}
	catch(e)
	{
	}
	
}
//检查表单提交是否为正整数  
function  isUnsignedInteger(strInteger){  
    var  newPar= /^[0-9]+$/; 
    return  newPar.test(strInteger);  
}

//验证价格比如100.20
function isPrice(str)
{
    var re=/^[1-9]\d*(\.\d+)?$/;
    //var re=/^(([1-9]\d*\.\d{0,2})|(0\.\d{0,2})|([1-9]\d*))$/; 
    return re.test(str);
}

//检查表单提交是否为正整数或者字母  
function  isIntabc(strInteger){  
    var  newPar= /^[_0-9a-zA-Z]+$/; 
    return  newPar.test(strInteger);  
}

var xmlObj = null;
function createxmlhttprequest()
{
	if(window.XMLHttpRequest){ 
		xmlObj = new XMLHttpRequest(); 
	}else if(window.ActiveXObject){	 
		xmlObj = new ActiveXObject("Microsoft.XMLHTTP");	 
	}else{ 
		return; 
	}		
}
function Ajax(url,divName)
{
	createxmlhttprequest();
    xmlObj.onreadystatechange = function(){
		if(xmlObj.readyState == 4){ 
			document.getElementById(''+divName+'').innerHTML = xmlObj.responseText; 
		} 
    } 
    xmlObj.open ('GET', url, true); 
    xmlObj.send (null);     
}
function checkName(txtName,act,divName)
{ 
    var un = encodeURIComponent(document.getElementById(txtName).value);
    var url2 = "../ajax/ajax.aspx?action="+act+"&un="+un;
	document.getElementById(''+divName+'').innerHTML = "<img src=../images/loading.gif />";
    Ajax(url2,divName);
} 

//打开自定义窗口
function openNewWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

//评论验证
function CheckComment()
{
 var nicheng=document.getElementById("nicheng");
 if(nicheng.value.length<1)
 {
           alert("请填写您的昵称！");
		   nicheng.focus();
         return false;
 }
 var yanzheng=document.getElementById("yanzheng");
 if(yanzheng.value.length<1)
 {
           alert("请填写正确的验证码！");
		   yanzheng.focus();
         return false;
 } 
 var pinglun=document.getElementById("pinglun");
 if(pinglun.innerHTML.length<2)
 {
          alert("内容太少，无法发布评论!");
		  pinglun.focus();
         return false;
 } 
}

// 多选的全选与取消
function checkJs(boolvalue)
{
    if(document.all.CheckID.length>1)
    {
        for(var i=0;i<document.all.CheckID.length;i++)
        {
            document.all.CheckID[i].checked = boolvalue;            
        }
    }
    else
        document.all.CheckID.checked = boolvalue;
}
//

// 只有全部选中时“全选”选中
function SingleCheckJs()
{
    var flag1=false;
    var flag2=false;
    
    if (document.form1.CheckID.length)
    {
        for (var i=0;i<document.form1.CheckID.length;i++)
        {
            if(document.form1.CheckID[i].checked)
                flag1 = true;
            else
                flag2 = true;
        }
    }
    else
    {
        if(document.form1.CheckID.checked)
            flag1 = true;
        else
            flag2 = true;
    }
    
    if(flag1==true&&flag2==false)
        document.getElementById("chk").checked = true;
    else
        document.getElementById("chk").checked = false;
}