function submit_form(form_name){
	eval("document."+form_name+".submit();");
}

// convenience function to access an HTML element by ID
function $(id){
	return document.getElementById(id);
}
// since the top function is conflicting with the jquery, we'll use $jq to call on the jquery
var $jq = jQuery;

function clear_field(field_obj){
	field_obj.value = '';
}

function validate_book_kiosk(){
	// make sure all the fields are not empty
	var bk_error_flag = 0;
	if(isBlank($("bk_wedding_date").value)){
		window.alert("Wedding Date Field cannot be empty");
		$("bk_wedding_date").focus();
		bk_error_flag = 1;
	}
	if(!isDate($("bk_wedding_date").value)){
		bk_error_flag = 1;
	}
	if(isBlank($("bk_city").value)){
		window.alert("City Field cannot be empty");
		$("bk_city").focus();
		bk_error_flag = 1;
	}	
	if(isBlank($("bk_province").value)){
		window.alert("Province Field cannot be empty");
		$("bk_province").focus();
		bk_error_flag = 1;
	}	
	if(bk_error_flag == 0){
		submit_form('book_kiosk_form');		
	}
}

function clear_city(){
	if($("bk_city").value == "City"){
		$("bk_city").value = "";
	}	
}

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, skip_check_close_date){
	if(typeof(skip_check_close_date) == "undefined"){
		skip_check_close_date = 0;	
	} 
	
	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 wedding 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 between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid wedding date")
		return false
	}
	today = new Date();
	weddingdate = new Date(year,month-1,day);
	if(!skip_check_close_date){
		if((today.getTime() - weddingdate.getTime()) > -1209600000){
			alert("The date is too close or has passed")
			return false
		}
	}
return true
}