js utc时间转正常格式

function   utcToDate(utcCurrTime)
{

//Fri Oct 31 18:00:00 UTC+0800 2008
utcCurrTime = utcCurrTime + "";
var date="";
var month=new Array();
month["Jan"]=1;

month["Feb"]=2;

month["Mar"]=3;

month["Apr"]=4;

month["May"]=5;

month["Jun"]=6;
month["Jul"]=7;

month["Aug"]=8;

month["Sep"]=9;

month["Oct"]=10;

month["Nov"]=11;

month["Dec"]=12;


var week=new Array();
week["Mon"]="一";

week["Tue"]="二";

week["Wed"]="三";

week["Thu"]="四";

week["Fri"]="五";

week["Sat"]="六";

week["Sun"]="日";


str = utcCurrTime.split(" ");
date = str[5]+"-";
date = date + month[str[1]] + "-" + str[2] + "-" + str[3];
//date=date+" 周"+week[str[0]];
return date;
}