function $(re)
{
	return document.getElementById(re);
}

function $n(re)
{
	return document.getElementByName(re);
}

//是否零长度字符串
function IsNone(s)
{
	var tmp=s.toString().replace(/　/g,"");
	
	if (null==tmp)
		return true;
		
	return (tmp.length==0);
}

//是否只有空白字符
function IsEmpty(s)
{
	var tmp=s.toString().replace(/　/g,"");
	
	if (null==tmp)
		return true;

	return (tmp.match(/^\s+$/ig)!=null)
}

//是否是数字
function IsNumber(s)
{
	if (IsNone(s) || IsEmpty(s))
		return false;

	var tmp = s.toString();
	return (!isNaN(tmp));
}

//是否是整数
function IsInteger(s)
{
	if (!IsNumber(s))
		return false;

	var tmp = (new Number(s)).toString();
	return (tmp.match(/^[-]?\d{1,15}$/ig)!=null); //整型精度为15位。
}

//是否是双精度型
function IsDouble(s)  //未测试
{
	if (!IsNumber(s))
		return false;

	var tmp = (new Number(s)).toString();
	if (null==tmp.match(/^[-]?(\d+)[.]?(\d+)$/ig))
		return false;

	s1 = RegExp.$1;
	s2 = RegExp.$2;
	return (s1.length + s2.length<=17); //浮点型精度为17位。
}

function IsDate(s)
{
	var reg = /^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$/;
	if (reg.test(s))
		return true;

	return false;
}

//功能：常用正则表达式
//作者：吴志刚
function isEmail(str)
{
	var tmp = str.toString();
	return (tmp.match(/^(?:[;]?[\w_-]+(?:[.][\w_-]+)*@[\w_-]+(?:[.][\w_-]+)+)+$/ig)!=null);
}

function isQQ(str)
{
	var tmp=str.toString();
	return (tmp.match(/^[1-9]\d{4,12}$/g)!=null);
}

//xxxx-xxxxxxxx-xxxx
function isPhone(str)
{
	var tmp=str.toString();
	return ((tmp.match(/^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/g))!=null);
}

	//1xxxxxxxxxx
function isMobile(str)
{
	var tmp=str.toString();
	return (tmp.match(/^((\(\d{2,3}\))|(\d{3}\-))?1\d{10}$/g)!=null);
}

//1xxxxxxxxxxx,xxxx-xxxxxxxx-xxxx,...
//"^(()|())(,(()|()))*$"
function isPhoneOrMobileList(str)
{
	var tmp=str.toString();
	return (tmp.match(/^((((\(\d{2,3}\))|(\d{3}\-))?1\d{10})|(((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?))(,((((\(\d{2,3}\))|(\d{3}\-))?1\d{10})|(((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?)))*$/g)!=null);
}

//xx@xx.xx,xx@xx.xx,...
function isEmailList(emails)
{		
	var isEmailFlag = true;
	
	for(var i = 0; i < emails.length; i++)
	{			
		if(!isEmail(emails[i].replace(/\s/g,"")))
		{
			isEmailFlag = false;
			break;				
		}
	}
	
	return isEmailFlag;
}


//A-Z,a~z,0~9,",","-"
function isAscii(str)
{
	var tmp=str.toString();
	return (tmp.match(/^[A-Za-z0-9,-]*$/g)!=null);
}

//http://
function isUrl(str)
{
	var tmp=str.toString();
	return (tmp.match(/^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^\"\"])*$/g)!=null);
}

function isHttps(str)
{
	var tmp=str.toString();
	return (tmp.match(/^https:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^\"\"])*$/g)!=null);
}

function isFtp(str)
{
	var tmp=str.toString();
	return (tmp.match(/^ftp:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^\"\"])*$/g)!=null);
}

function checkEmailsReteration(emails)
{
	for(var i=0;i<emails.length;i++)
	{
		emails[i] = emails[i].replace(/\s/g, "");
	}
			
	for(var i=0; i<emails.length; i++)
	{
		var k = 0;
		
		for(var j=0; j<emails.length; j++)
		{
			if(emails[i] == emails[j])
			{
				k++;
			}
		}
		
		if(k > 1)
		{				
			return true;				
		}
	}
	
	return false;	
}
	
//功能：页面展示时，处理文章编辑器中插入的图片的尺寸，使之适合页面大小，避免破坏页面布局
function ResizeImage(handleObj,w,h)
{
	var coll = handleObj.getElementsByTagName("IMG");
	//alert(coll.length);
	for(var i = 0; i<coll.length; i++)
	{
		var iWidth = coll[i].width;
		var iHeight = coll[i].height;
		
		if(coll[i].style.width != "")
			iWidth = parseInt(coll[i].style.width);
		if(coll[i].style.height != "")
			iHeight = parseInt(coll[i].style.height);
			
		if(iWidth >= iHeight)
		{
			if(iWidth> w)
			{
				if(coll[i].style.width != "")
				{
					coll[i].style.width = w;
					coll[i].style.height = (w * iHeight)/ iWidth;
				}
				else
				{
					coll[i].width = w;
					coll[i].height = (w * iHeight)/ iWidth;
				}
			}
		}
		else
		{
			if(iHeight > h)
			{
				if(coll[i].style.width != "")
				{
					coll[i].style.width = (h * iWidth)/ iHeight;
					coll[i].style.height = h;
				}
				else
				{
					coll[i].height = h;
					coll[i].width = (h * iWidth)/ iHeight;
				}
			}
		}
	}
}

function ResizeImageInWidth(handleObj,w,h)
{
	var coll = handleObj.getElementsByTagName("IMG");
	var newW = 0, newH = 0;
	
	for(var i = 0; i<coll.length; i++)
	{
		var iWidth = coll[i].width;
		var iHeight = coll[i].height;
		
		if(coll[i].style.width != "")
			iWidth = parseInt(coll[i].style.width);
		if(coll[i].style.height != "")
			iHeight = parseInt(coll[i].style.height);
			
		if(iWidth >= iHeight)
		{ 
			if(iWidth> w)
			{
				newW = w;
				newH = (w * iHeight)/ iWidth;
			}
		}
		else
		{
			if(iWidth> w)
			{
				newW = w;
				newH = (w * iHeight)/ iWidth;
				if(newH > (1.5*h))
					newH = 1.5*h;
			}
			else if(iHeight > (1.5*h))
			{
				newW = iWidth;
				newH = 1.5*h;
			}
		}
		
		if(newW > 0)
		{			
			if(coll[i].style.width != "")
			{
				coll[i].style.width = newW;
				coll[i].style.height = newH;
			}
			else
			{
				coll[i].width = newW;
				coll[i].height = newH;
			}
			newW = 0;
			newH = 0;
		}
	}
}

function SetSameHeight()
{
	var divLeft = document.getElementById("divDoorLeft");
	var divMiddle = document.getElementById("divDoorMiddle");
	var divRight = document.getElementById("divDoorRight");
	var divMain = document.getElementById("divDoorMain");
	
	if(divLeft!=null)
	{
		var maxHeight = 0;
		if(divMain != null)
		{
			maxHeight = Math.max(divLeft.scrollHeight,divMain.scrollHeight);
			divLeft.style.height = maxHeight-25 + 'px';
			divMain.style.height = maxHeight + 'px';
			
		}
		else
		{
			maxHeight = Math.max(divLeft.scrollHeight,divMiddle.scrollHeight, divRight.scrollHeight);
			divLeft.style.height = maxHeight-25 + 'px';
			if(divMiddle.scrollHeight < maxHeight)
				divMiddle.style.height = maxHeight + 'px';	
			divRight.style.height = maxHeight-25 + 'px';
			
			//alert(maxHeight + "," + divLeft.scrollHeight);
		}
	}
}

function SetLate()
{
	window.setTimeout("SetSameHeight()", 1000);

}
/*
if(document.URL.toLowerCase().indexOf("/user/")>0)
{
	window.attachEvent('onload',SetLate);		
}
*/
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

//定位到指定锚位置
function gotoAnchorLocation(id)
{
	var url = self.location.pathname;
	var search = self.location.search;
	var str = url+ search + "#" + "cmt" + id;
	self.location = str;
}