求教JS专家帮我翻译下 谢谢了 急

<script>
var months = ["jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"];
jQuery(document).ready(function($) {
function calculateAge(){
var value1 = fieldDateOfBirth.val();
var value2 = fieldOtherDate.val();
var currAge = fieldAge.val();
if(value1!="" && value2!=""){
var splitString = value1.split("-");
var day1 = splitString[0];
var year1 = splitString[2];
var mon1 = months.indexOf(splitString[1].toLowerCase())+1;
splitString = value2.split("-");
var day2 = splitString[0];
var year2 = splitString[2];
var mon2 = months.indexOf(splitString[1].toLowerCase())+1;
var age=year2-year1;
if((mon2==mon1 && day2<day1)||mon2<mon1) age--;
if(currAge != age){
fieldAge.val(age);
fieldAge.change();
}
}
}
$("#srl").focus(function(){
calculateAge();
fieldAge.attr('disabled', '');
});
$("#srl").blur(function(){
fieldAge.attr('disabled', 'disabled');
});
$("#srh").focus(function(){
fieldAge.attr('disabled', '');
calculateAge();
});
$("#srh").blur(function(){
fieldAge.attr('disabled', 'disabled');
});
var fieldDateOfBirth = $("#DateOfBirth").parent().parent().find("input");
var fieldOtherDate = $("#OtherDate").parent().parent().find("input");
var fieldAge = $("#CalculatedAge").parent().parent().find("input");
fieldAge.attr('disabled', 'disabled');
});
</script>
谢谢大神 能逐句翻译的最好。我只是对 JS有点了解 Jquery是一点都不懂 急用啊 谢谢