// JavaScript Document
var share = new Object();

share.amountCheck = function (eleField, checkMin, checkMax, fieldName) {
	for(i=0;i<eleField.value.length;i++) {
		charCode = String.charCodeAt(eleField.value[i]);
		if ((charCode < 48) || (charCode > 57)) {
			eleField.value = checkMin;
			alert(fieldName+"欄位必需填入有效數字");
			break;
		}
	}
	if (parseInt(eleField.value) < checkMin) {
		eleField.value = checkMin;
		alert(fieldName+"不能少於"+checkMin);
	} else if (parseInt(eleField.value) > checkMax) {
		eleField.value = checkMax;
		alert(fieldName+"不能大於"+checkMax);
	}
};