将金额小写转化成汉字大写(javascript)

function Arabia_to_Chinese(Num){
for(i=Num.length-1;i>=0;i--)
{
Num = Num.replace(",","")//替换tomoney()中的“,”
Num = Num.replace(" ","")//替换tomoney()中的空格
}
Num = Num.replace("￥","")//替换掉可能出现的￥字符
if(isNaN(Num)) { //验证输入的字符是否为数字
alert("请检查小写金额是否正确");
return;
}
//---字符处理完毕，开始转换，转换采用前后两部分分别转换---//
part = String(Num).split(".");
newchar = "";
//小数点前进行转化
for(i=part[0].length-1;i>=0;i--){
if(part[0].length > 10){ alert("位数过大，无法计算");return "";}//若数量超过拾亿单位，提示
tmpnewchar = ""
perchar = part[0].charAt(i);
switch(perchar){
case "0": tmpnewchar="零" + tmpnewchar ;break;
case "1": tmpnewchar="壹" + tmpnewchar ;break;
case "2": tmpnewchar="贰" + tmpnewchar ;break;
case "3": tmpnewchar="叁" + tmpnewchar ;break;
case "4": tmpnewchar="肆" + tmpnewchar ;break;
case "5": tmpnewchar="伍" + tmpnewchar ;break;
case "6": tmpnewchar="陆" + tmpnewchar ;break;
case "7": tmpnewchar="柒" + tmpnewchar ;break;
case "8": tmpnewchar="捌" + tmpnewchar ;break;
case "9": tmpnewchar="玖" + tmpnewchar ;break;
}
switch(part[0].length-i-1){
case 0: tmpnewchar = tmpnewchar +"元" ;break;
case 1: if(perchar!=0)tmpnewchar= tmpnewchar +"拾" ;break;
case 2: if(perchar!=0)tmpnewchar= tmpnewchar +"佰" ;break;
case 3: if(perchar!=0)tmpnewchar= tmpnewchar +"仟" ;break;
case 4: tmpnewchar= tmpnewchar +"万" ;break;
case 5: if(perchar!=0)tmpnewchar= tmpnewchar +"拾" ;break;
case 6: if(perchar!=0)tmpnewchar= tmpnewchar +"佰" ;break;
case 7: if(perchar!=0)tmpnewchar= tmpnewchar +"仟" ;break;
case 8: tmpnewchar= tmpnewchar +"亿" ;break;
case 9: tmpnewchar= tmpnewchar +"拾" ;break;
}
newchar = tmpnewchar + newchar;
}
//小数点之后进行转化
if(Num.indexOf(".")!=-1){
if(part[1].length > 2) {
alert("小数点之后只能保留两位,系统将自动截段");
part[1] = part[1].substr(0,2)
}
for(i=0;i<part[1].length;i++){
tmpnewchar = ""
perchar = part[1].charAt(i)
switch(perchar){
case "0": tmpnewchar="零" + tmpnewchar ;break;
case "1": tmpnewchar="壹" + tmpnewchar ;break;
case "2": tmpnewchar="贰" + tmpnewchar ;break;
case "3": tmpnewchar="叁" + tmpnewchar ;break;
case "4": tmpnewchar="肆" + tmpnewchar ;break;
case "5": tmpnewchar="伍" + tmpnewchar ;break;
case "6": tmpnewchar="陆" + tmpnewchar ;break;
case "7": tmpnewchar="柒" + tmpnewchar ;break;
case "8": tmpnewchar="捌" + tmpnewchar ;break;
case "9": tmpnewchar="玖" + tmpnewchar ;break;
}
if(i==0)tmpnewchar =tmpnewchar + "角";
if(i==1)tmpnewchar = tmpnewchar + "分";
newchar = newchar + tmpnewchar;
}
}
//替换所有无用汉字
while(newchar.search("零零") != -1)
newchar = newchar.replace("零零", "零");
newchar = newchar.replace("零亿", "亿");
newchar = newchar.replace("亿万", "亿");
newchar = newchar.replace("零万", "万");
newchar = newchar.replace("零元", "元");
newchar = newchar.replace("零角", "");
newchar = newchar.replace("零分", "");

if (newchar.charAt(newchar.length-1) == "元" || newchar.charAt(newchar.length-1) == "角")
newchar = newchar+"整"
return newchar;
}