//去掉空格
function JStrim(inputString) 
{ 
    if (typeof inputString != "string") 
    {
        return inputString; 
    } 
    var retValue = inputString; 
    var ch = retValue.substring(0, 1); 
    while (ch == " ") 
    {  
          //检查字符串开始部分的空格 
          retValue = retValue.substring(1, retValue.length); 
          ch = retValue.substring(0, 1); 
    } 
    ch = retValue.substring(retValue.length-1, retValue.length); 
    while (ch == " ") 
    { 
         //检查字符串结束部分的空格 
         retValue = retValue.substring(0, retValue.length-1); 
         ch = retValue.substring(retValue.length-1, retValue.length); 
    } 
    while (retValue.indexOf("  ") != -1) 
    {  
         //将文字中间多个相连的空格变为一个空格 
         retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length);  
    } 
    return retValue; 
}   

//去掉前后空格:包括全角空格
function JS_trim(inputString)
{   
    inputString += "";
    while( (inputString.charAt(0)==' ')||(inputString.charAt(0)=='　')||(escape(inputString.charAt(0))=='%u3000') )  
    {   
         inputString=inputString.substring(1,inputString.length);
    }
    while( (inputString.charAt(inputString.length-1)==' ')||(inputString.charAt(str.length-1)=='　')||(escape(inputString.charAt(inputString.length-1))=='%u3000') ) 
    { 
        inputString=inputString.substring(0,inputString.length-1);
    }
    return inputString;
}