// JavaScript Document
function allowSend()
{ 
//validation for employment application form

if(document.arrangement.last_name.value=='')
{ alert("Please enter your last name");
document.arrangement.last_name.focus();
return false;
}
if(document.arrangement.first_name.value=='')
{ alert("Please enter your first name");
document.arrangement.first_name.focus();
return false;
}
matchArr=document.arrangement.home_phone.value.match(/^(\d{3})-?\d{3}-?\d{4}$/);
numDashes=document.arrangement.home_phone.value.split('-').length -1;
if(matchArr==null || numDashes==1)
{ alert("Please enter phone number in a 10 digit or xxx-xxx-xxxx format");
document.arrangement.home_phone.select();
document.arrangement.home_phone.focus();
return false;
}
matchArr=document.arrangement.other_phone.value.match(/^(\d{3})-?\d{3}-?\d{4}$/);
numDashes=document.arrangement.other_phone.value.split('-').length -1;
if(document.arrangement.other_phone.value!=='' && (matchArr==null || numDashes==1))
{ alert("Please enter phone number in a 10 digit or xxx-xxx-xxxx format");
document.arrangement.other_phone.select();
document.arrangement.other_phone.focus();
return false;
}
var testresults
var str=document.arrangement.email.value
 var filter=/^.+@.+\..{2,3}$/

 if (filter.test(str))
    testresults=true
 else {
    alert("Please input a valid email address!")
	document.arrangement.email.select();
	document.arrangement.email.focus();
    return false;
}
if(document.arrangement.address1.value=='')
{ alert("Please enter your address");
document.arrangement.address1.focus();
return false;
}
if(document.arrangement.city.value=='')
{ alert("Please enter a city");
document.arrangement.city.focus();
return false;
}
if(document.arrangement.state.selectedIndex==0)
{ alert("Please select a state");
document.arrangement.state.focus();
return false;
}
if(document.arrangement.zip.value=='' || document.arrangement.zip.value.length !== 5 || isNaN(document.arrangement.zip.value))
{ alert("Please enter your 5 digit zip code");
document.arrangement.zip.select();
document.arrangement.zip.focus();
return false;
}
var job1started= document.arrangement.job1started;
var job1end=document.arrangement.job1ended;
var job2started=document.arrangement.job2started;
var job2end=document.arrangement.job2ended;
var job3started=document.arrangement.job3started;
var job3end=document.arrangement.job3ended;
var job4started=document.arrangement.job4started;
var job4end=document.arrangement.job4ended;

if(job1started.value!=='' && isDate(job1started.value)==false)
{ job1started.select();
job1started.focus();
return false;
}

if(job1end.value!=='' && isDate(job1end.value)==false)
{ job1end.select();
job1end.focus();
return false;
}

if(job2started.value!=='' && isDate(job2started.value)==false)
{ job2started.select();
job2started.focus();
return false;
}
if(job2end.value!=='' && isDate(job2end.value)==false)
{ job2end.select();
job2end.focus();
return false;
}
if(job3started.value!=='' && isDate(job3started.value)==false)
{ job3started.select();
job3started.focus();
return false;
}
if(job3end.value!=='' && isDate(job3end.value)==false)
{ job3end.select();
job3end.focus();
return false;
}
if(job4started.value!=='' && isDate(job4started.value)==false)
{ job4started.select();
job4started.focus();
return false;
}
if(job4end.value!=='' && isDate(job4end.value)==false)
{ job4end.select();
job4end.focus();
return false;
}

if((job1started.value!=='' || job1end.value!=='') && document.arrangement.Position1.value=='')
{ alert("Please enter a job description");
document.arrangement.Position1.focus();
return false;
}
if((job2started.value!=='' || job2end.value!=='') && document.arrangement.Position2.value=='')
{ alert("Please enter a job description");
document.arrangement.Position2.focus();
return false;
}
if((job3started.value!=='' || job3end.value!=='') && document.arrangement.Position3.value=='')
{ alert("Please enter a job description");
document.arrangement.Position3.focus();
return false;
}
if((job4started.value!=='' || job4end.value!=='') && document.arrangement.Position4.value=='')
{ alert("Please enter a job description");
document.arrangement.Position4.focus();
return false;
}
return true;
	}

var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year");
		return false;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}