js 金额转大写

 /*******************************************
	 * 金额转换大写
	 *******************************************/
	 function showChinaValue(val) {
	 	var totalValue = val;
	 	var minusFlag = false;
	 	if (totalValue < 0) {
	 		minusFlag = true;
	 		totalValue = Math.abs(totalValue);
	 	}
	 	var numberValue = new String(Math.round(totalValue * 100)); //   数字金额   
	 	var chineseValue = ""; //   转换后的汉字金额 
	 	if (minusFlag) {
	 		chineseValue = "负 ";//负数
	 	}
	 	//var String1 = Lang["kmCmReimburseMain.patten.chinese"]; //   汉字数字   
	 	var String1 = '';
	 	//alert(String1)

	 	//var String2 = Lang["kmCmReimburseMain.patten.unit"]; //   对应单位   
	 	var String2 = ''; //   对应单位   
	 	var len = numberValue.length; //   numberValue   的字符串长度   
	 	var Ch1; //   数字的汉语读法   
	 	var Ch2; //   数字位的汉字读法   
	 	var nZero = 0; //   用来计算连续的零值的个数   
	 	var String3; //   指定位置的数值   
	 	if (len > 15) {
	 		alert('');
	 		//alert(Lang["kmCmReimburseMain.patten.warn"]);
	 		return "";
	 	}
	 	if (numberValue == 0) {
	 		//chineseValue = Lang["kmCmReimburseMain.patten.init"];
	 		chineseValue = '';
	 		return chineseValue;
	 	}

	 	String2 = String2.substr(String2.length - len, len); //   取出对应位数的STRING2的值   
	 	for (var i = 0; i < len; i++) {
	 		String3 = parseInt(numberValue.substr(i, 1), 10); //   取出需转换的某一位的值   
	 		if (i != (len - 3) && i != (len - 7) && i != (len - 11)
	 			&& i != (len - 15)) {
	 			if (String3 == 0) {
	 				Ch1 = "";
	 				Ch2 = "";
	 				nZero = nZero + 1;
	 			} else if (String3 != 0 && nZero != 0) {
	 				//Ch1 = Lang["kmCmReimburseMain.patten.zero"]
	 				Ch1 = ''
	 					+ String1.substr(String3, 1);
	 				Ch2 = String2.substr(i, 1);
	 				nZero = 0;
	 			} else {
	 				Ch1 = String1.substr(String3, 1);
	 				Ch2 = String2.substr(i, 1);
	 				nZero = 0;
	 			}
	 		} else { //   该位是万亿，亿，万，元位等关键位   
	 			if (String3 != 0 && nZero != 0) {
	 				//Ch1 = Lang["kmCmReimburseMain.patten.zero"]
	 				Ch1 = ''
	 					+ String1.substr(String3, 1);
	 				Ch2 = String2.substr(i, 1);
	 				nZero = 0;
	 			} else if (String3 != 0 && nZero == 0) {
	 				Ch1 = String1.substr(String3, 1);
	 				Ch2 = String2.substr(i, 1);
	 				nZero = 0;
	 			} else if (String3 == 0 && nZero >= 3) {
	 				Ch1 = "";
	 				Ch2 = "";
	 				nZero = nZero + 1;
	 			} else {
	 				Ch1 = "";
	 				Ch2 = String2.substr(i, 1);
	 				nZero = nZero + 1;
	 			}
	 			if (i == (len - 11) || i == (len - 3)) { //   如果该位是亿位或元位，则必须写上   
	 				Ch2 = String2.substr(i, 1);
	 			}
	 		}
	 		chineseValue = chineseValue + Ch1 + Ch2;
	 	}
	 	var String4 = 0;
	 	if (len > 2) {
	 		String4 = parseInt(numberValue.substr(len - 2, 1), 10);
	 	}
	 	if (String3 == 0 && String4 == 0) { //   最后一位（分）为0时，加上“整”   
	 		chineseValue = chineseValue
	 			+ '';
	 		//+ Lang["kmCmReimburseMain.patten.zheng"];
	 	}
	 	return chineseValue;
	 }

调用

showChinaValue(‘1.0’)