javascript拆分中英混合字符串

function splitStr(sChars){
	var str="";
	for(var i=0;schar = sChars.charAt(i);i++){
		if(typeof (schar)=="undefined"||typeof(sChars.charAt(i+1))=="undefined")
		break;
		str+=schar;
		if(getStrLength(schar)!= getStrLength(sChars.charAt(i+1))){
			str+=",";								
		}
		
	}
	return str;	
}

function getStrLength(str) {   
    var cArr = str.match(/[^\x00-\xff]/ig);   
    return str.length + (cArr == null ? 0 : cArr.length);   
}  

alert(splitStr("雪雪xx儿儿ee雪儿rr"));

//打印结果：雪雪,xx,儿儿,ee,雪儿,rr,