//replace before Space and end Space in the String "str"
function trim(str)
{
	var str1,str2
	str1=str
	str2=ltrim(str1)
	return rtrim(str2)
}

//replace before Space  in the String "str"
function ltrim(str)
{
	var len,strTemp,strSub,i
	strTemp=new String(str)
	strSub=new String(strTemp)
	len=strTemp.length
	i=0
	if (len<1) 
		{ return "";}
	else
	{
	while (len>=1)
		{
			if (strTemp.charAt(i)==" ")
			{
				strSub=strTemp.substring(i+1);
				len=strSub.length;
				i=i+1;
				}
			else
			return strSub;
			}
			return ""
		}
			
}

//replace end Space in the String "str"
function rtrim(str)
{
	var len,strTemp,strSub,i
	strTemp=new String(str)
	strSub=new String(strTemp)
	len=strTemp.length
	i=len
	if (len<1) 
		{ return "";}
	else
	{
	    while (len>=1)
		{
			if (strTemp.charAt(i-1)==" ")
			{strSub=strTemp.substring(0,i-1);
				len=strSub.length;
				i=i-1;}
			else
				{return strSub;}
		}
		return ""
	}
	
}


function upload(strHome)
{
	window.open("http://photo.hexun.com/upload/UploadSpaceCover.aspx?strHome"+strHome);
}


//是否是正数
function isInt(inputString) 
{ 
	if(!IsInteger(inputString))
	{
		return false;
	}
    return true; 
}

function IsInteger(string ,sign) 
{  
	var integer1; 
	if ((sign!=null) && (sign!='-') && (sign!='+')) 
	{ 
		alert("xx");
		return false; 
	} 
	integer1 = parseInt(string); 
	if (isNaN(integer1)) 
	{ 
		return false; 
	} 
	else if (integer1.toString().length==string.length) 
	{  
		if ((sign==null) || (sign=='-' && integer<0) || (sign=='+' && integer1>0)) 
		{ 
			return true; 
		} 
		else 
			return false;  
	} 
	else 
		return false; 
} 

//是否是小数
function isNumber(inputString) 
{ 
	var isLegalNumber = !isNaN(inputString);
	if (isLegalNumber) 
	{
		return true;
	}
	return false;
}