function bookmarksite(url){

var ttitle =document.title;
if (window.sidebar) {
	window.sidebar.addPanel(ttitle, url, "");
} else if(window.opera && window.print) {
	var elem = document.createElement('a');
	elem.setAttribute('href',url);
	elem.setAttribute('title',ttitle);
	elem.setAttribute('rel','sidebar');
	elem.click();
} else if(document.all) {
	window.external.AddFavorite(url, ttitle);
}

}


function urlencode(str) {
str = escape(str);
str = str.replace('+', '%2B');
str = str.replace('%20', '+');
str = str.replace('*', '%2A');
str = str.replace('/', '%2F');
str = str.replace('@', '%40');
return str;
}


function IsNumeric(sText)
{
	

   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;


   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }

   return IsNumber;
   
   }
   

function email_checker(str) {
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){

		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){

		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){

		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){

		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false
		 }

 		 return true					
}



function trimAll(sString) 
{
while (sString.substring(0,1) == ' ')
{
sString = sString.substring(1, sString.length);
}
while (sString.substring(sString.length-1, sString.length) == ' ')
{
sString = sString.substring(0,sString.length-1);
}
return sString;
}



// date checker

//NOTE: maxYear must be entered before Javascript include statment

//<script language="javascript">
//var maxYear=<?php echo (date("Y")-1); ?>;
//<//script>

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


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 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(pos1+1,pos2)
	var strDay=dtStr.substring(0,pos1)
	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){
		return "The date format: dd/mm/yyyy"

	}
	if (strMonth.length<1 || month<1 || month>12){
		return "Please enter a valid month"

	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		return "Please enter a valid day"

	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		return "year range: "+minYear+" and "+maxYear+" only";

	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
return "Please enter a valid date"

	}
return "ok"
}



function getToday(){
	var today_date= new Date()
	var myyear=today_date.getYear()
	var mymonth=today_date.getMonth()+1
	var mytoday=today_date.getDate()
	return mytoday+"/"+mymonth+"/"+myyear;
}