手机号码格式化显示javascript

	/*手机代码格式化一般与Object.oninput=function(){}连用*/
　　　　 function phoneFormat(phone){
		if(phone.length <= 3 ){
			return phone;
		}
		return phone.slice(0,3) + (phone.slice(3) == "" ? "":(" " + phoneFormatMethd(phone.slice(3))));
	}
	function phoneFormatMethd(phone4){
		return phone4.slice(0,4) + (phone4.slice(4) == "" ? "":(" " + phoneFormatMethd(phone4.slice(4))));
	}
　　　　　　/*去除字符串所有空格*/
	function globalTrim(str,is_global){
	   var result;
	   result = str.replace(/(^\s+)|(\s+$)/g,"");
	   if(is_global.toLowerCase()=="g"){
	    	result = result.replace(/\s/g,"");
	   }
	   return result;
	}