/* script.js */

/**
 * Attaches an onclick event to each link with rel="external" that opens the
 * link in a new window.
 */
function initExternalLinks() {
  var as = document.getElementsByTagName("a");
  for (var i = 0; i < as.length; i++) {
    if (as[i].getAttribute("rel") == "external") {
      as[i].onclick = openNewWindow;
    }
  }

  function openNewWindow() {
    window.open(this.href);
    return false;
  }

  /*if(document.getElementById('part1')) {
   if(document.getElementById('part1').className == 'formDivider show'){
       document.getElementById('intro').className = 'formDivider show';
    } else {
      document.getElementById('intro').className = 'formDivider hide';
    }
  }*/
}

function nextPane(currDiv, nextDiv) {
  cd = document.getElementById(currDiv);
  nd = document.getElementById(nextDiv);
  cd.className = 'formDivider hide';
  nd.className = 'formDivider show';

  if(nd.id == 'part1'){
    document.getElementById('intro').className = 'formDivider show';
  } else {
     document.getElementById('intro').className = 'formDivider hide';
  }
  
}

function prevPane(currDiv, prevDiv) {
  cd = document.getElementById(currDiv);
  pd = document.getElementById(prevDiv);
  cd.className = 'formDivider hide';
  pd.className = 'formDivider show';
  
   if(pd.id == 'part1'){
    document.getElementById('intro').className = 'formDivider show';
  } else {
     document.getElementById('intro').className = 'formDivider hide';
  }
}

function completeTRED() {
  cbx = document.getElementById('doTRED');
  actionBtn = document.getElementById('non_tred_action');
  submitBtn = document.getElementById('non_tred_submit');

  if (cbx.checked == true) {
    actionBtn.className = 'formDivider show';
    submitBtn.className = 'formDivider hide';
    
  } else if (cbx.checked == false) {
    actionBtn.className = 'formDivider hide';
    submitBtn.className = 'formDivider show';
  }
  
  
}

function highlightMandatoryField(fld) {
  if (fld.value == '') {
    fld.style.borderColor = '#ff0000';
  } else {
    fld.style.borderColor = '#EAEAEA';
  }
}

function showPrintedApp() {
  elm = document.getElementById('pA');

  if (elm.className == 'printedApp hide') {
    elm.className = 'printedApp show';
  } else {
    elm.className = 'printedApp hide';
  }

}

function disableOptions() {
  unsubCheck = document.getElementById('unsubscribe_box');
  subNewsletter = document.getElementById('events_newsletter');
  sub2011Program = document.getElementById('events_2011');
  sub2010Program = document.getElementById('events_2010');

  if (unsubCheck.checked == true) {
    subNewsletter.checked=false;
    sub2011Program.checked=false;
    sub2010Program.checked=false;
  }

  if (subNewsletter.checked == true || sub2011Program.checked == true || sub2010Program.checked == true) {
    unsubCheck.checked=false;
  }

}

function disableUnsub(elm) {
  el = document.getElementById(elm);
  unsubCheck = document.getElementById('unsubscribe_box');

  if (el.checked == true) {
    unsubCheck.checked = false;
  }
}

             
/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=2000;
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 strDay=dtStr.substring(0,pos1);
	var strMonth=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("Please enter the start date and end date in the correct format : dd/mm/yyyy");
		return false;
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter the start date and end date with a valid month");
		return false;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter the start date and end date with a valid day");
		return false;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter the start date and end date with a valid 4 digit year between "+minYear+" and "+maxYear);
		return false;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter the start date and end date with a valid date");
		return false;
	}
return true
}

function dateValidate() {

	var sd= document.getElementById('start_date');
 
	if (isDate(sd.value)==false){
		//dt.focus();
                return false
	}

        var ed= document.getElementById('end_date');

	if (isDate(ed.value)==false){
		//dt.focus();
                return false
	}


    return true
 }

function grantValidate() {    
    if( dateValidate() ){
    return validateForm(document.getElementById('grant_and_incentive_application_form'));
    }
    else {
        return false;
    }
    
}