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


function showValue(selObj){
	if (selObj.options[selObj.selectedIndex].value != "") {
		window.location.href = selObj.options[selObj.selectedIndex].value;
	}
}

function validate_form(f){
var i;
var res;
var test;
var testemail;
var testdate;
var testdate_range_less;
var testrequired_tick;
var testselect;
var return_val;
return_val = true
  
  var spans,i;

  //try{
  	//clear lables
 	 // loop through all images of the document
	 spans=document.getElementsByTagName('span');
	 for(i=0;i<spans.length;i++)
	 {
		 if (spans[i].className == 'alert'){
			spans[i].style.visibility = 'hidden';
		 }
	 }

	 i = 0;
	while ((f.elements[i]) && (f.elements[i].name != '')){
		if (f.elements[i].name != null){
			test = f.elements[i].name.search("_validate");
			testemail = f.elements[i].name.search("_validateemail");
			testdate = f.elements[i].name.search("_validatedate");
			testdate_range_less = f.elements[i].name.search("_rangeless");
			testrequired_tick = f.elements[i].name.search("_required");
			//alert('tick box = ' + testrequired_tick);
			if ((test!=-1) || (testemail!=-1) || (testdate!=-1) || (testdate_range_less!=-1) || (testrequired_tick!=-1)){
				if ((test!=-1) && ((testemail==-1) && (testdate==-1) && (testdate_range_less==-1) && (testrequired_tick==-1))){
					//alert(' Plain Validate name = ' + f.elements[i].name + ' - test = ' + test + ' test email = ' + testemail + ', test range = ' + testdate_range_less + ' date = ' + testdate);
					
					if ( ((f.elements[i].value == '') || (f.elements[i].type == 'radio')) && (test != -1)  ){
						if (f.elements[i].type == 'radio'){
							res = false;
							for (j =0; j < eval('f.' + f.elements[i].name + '.length'); j ++)
								res = res | eval('f.' + f.elements[i].name + '[' + j + '].checked');
							
								if (res == false){
									document.getElementById("lbl_" + f.elements[i].name).style.visibility = 'visible';
									return_val =  false;
								}
							}
						else{
							document.getElementById("lbl_" + f.elements[i].name).style.visibility = 'visible';
							return_val =  false;
						}
					} 
				}
				else{
					if ((testemail!=-1) && (testdate==-1) && (testdate_range_less==-1) && (testrequired_tick==-1)){
						//alert(' Email Validate name = ' + f.elements[i].name + ' - test = ' + test + ' test email = ' + testemail + ', test range = ' + testdate_range_less + ' date = ' + testdate);
						if (check_email(f.elements[i].value) == false){
							document.getElementById("lbl_" + f.elements[i].name).style.visibility = 'visible';
							return_val =  false;
						}
					}
					else if ((testemail==-1) && (testdate!=-1) && (testdate_range_less==-1) && (testrequired_tick==-1)){
						//alert(' Date Validate name = ' + f.elements[i].name + ' - test = ' + test + ' test email = ' + testemail + ', test range = ' + testdate_range_less + ' date = ' + testdate);
						if (isDate(f.elements[i].value) == false){
							document.getElementById("lbl_" + f.elements[i].name).style.visibility = 'visible';
							return_val =  false;
						}
					}
					else if ((testemail==-1) && (testdate==-1) && (testdate_range_less!=-1) && (testrequired_tick==-1) ){
						//alert(' Range Date Less Validate name = ' + f.elements[i].name + ' - test = ' + test + ' test email = ' + testemail + ', test range = ' + testdate_range_less + ' date = ' + testdate);
						if (is_Range_Date(f.elements[i].value, "less") == false){
							document.getElementById("lbl_" + f.elements[i].name).style.visibility = 'visible';
							return_val =  false;
						}
					}
					else if ((testemail==-1) && (testdate==-1) && (testdate_range_less==-1) && (testrequired_tick!=-1) ){
						//alert(' Required Tick Box Validate name = ' + f.elements[i].name + ' - test = ' + test + ' test email = ' + testemail + ', test range = ' + testdate_range_less + ' date = ' + testdate);
						//alert(f.elements[i].checked);
						if (f.elements[i].checked == false){
							document.getElementById("lbl_" + f.elements[i].name).style.visibility = 'visible';
							return_val =  false;
						}
					}
					else{
						//alert(' Other Validate name = ' + f.elements[i].name + ' - test = ' + test + ' test email = ' + testemail + ', test range = ' + testdate_range_less + ' date = ' + testdate);
					}
				}
			}//End check that validation is need
		}
			
	  i ++;
	}

return return_val;
		
}

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("The date format should be : dd/mm/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 date")
		return false
	}
return true
}


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 check_email(email){
	len    = email.length;
	check1 = false;
	check2 = false;

	for (j = 0; j < len; j ++){
	  if (email.charAt(j) == '@') 
		check1 = true;
	  if ((email.charAt(j) == '.') && (email.length > j+1) && check1)
		check2 = true;
	}
	if ((check1==true) && (check2==true)){
		return true
	}
	else{
		return false
	}
}

function is_Range_Date(date_source, check){
	if (date_source){
		var date_array=date_source.split("|");
		//alert(date_array[0]);
		//alert(date_array[1]);
		
		if ((date_array[0] =="") && (date_array[1]!="")){
			if (after_today(date_array[1]) == true){
					//alert('after = ' + after_today(date_array[1]));
					return true;
			}
			else{
				return false;
			}
		}
		else if((date_array[0] !="") && (date_array[1]!="")){
			if (compare_dates(date_array[1], date_array[0]) == true){
				//alert('compare = ' + after_today(date_array[1]));
				return true;
			}else{
				return false;
			}
		}
		else{
			return false;
		}
	}
	else{
		return false;
	}
}

function after_today(target_date){
	var date_array=target_date.split("/");
	var myDate=new Date()
	var month = date_array[1] -1;
	myDate.setFullYear(date_array[2],month,date_array[0])
	var today = new Date()
		//alert(myDate + '>' + today);
	if (myDate>today)
		return true;
	else
		return false;
		
}

function compare_dates(source_date, target_date){
	
	var source_myDate=new Date()
	
	var source_date_array=source_date.split("/");
	var source_month = source_date_array[1] -1;
	source_myDate.setFullYear(source_date_array[2],source_month,source_date_array[0])
	
	var target_myDate=new Date()
	var target_date_array=target_date.split("/");
	var target_month = target_date_array[1] -1;
	
	target_myDate.setFullYear(target_date_array[2],target_month,target_date_array[0])

	if (source_myDate>target_myDate){
		//alert(source_myDate + '>' + target_myDate);
		return true;
	}else{
		//alert(source_myDate + '>' + target_myDate);
		return false;
	}
}