//取掉连续空格，将中文空格转为英文空格
function isNumberString (InString,RefString)
{
	if(InString.length == 0) return (false);
	for (Count=0; Count < InString.length; Count++)
	{
		TempChar= InString.substring (Count, Count+1);
		if (RefString.indexOf (TempChar, 0)==-1)  
		return (false);
	}
	return (true);
}

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