/*Trim function*/
String.prototype.trim = function() 
{
	return this.replace(/^\s+|\s+$/g,"");
}


function isValidEmail(email)
{
	if(email.length!=0)
		return email.match(/\b(^(\S+@).+((\.com)|(\.info)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\..{2,2}))$)\b/gi);
	
	return false;

}

function addCharacter(fieldId,char,positions)
{
	field = document.getElementById(fieldId);
	 for (var i in positions)
	 {
	 	if(field.value.length==positions[i])
		 	field.value=field.value+char;
	 } 

}

function isFloat(value){

   if(isNaN(value) ){
     return false;
   } else {
      if(parseFloat(value)) {
              return true;
          } else {
              return 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=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){
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		return false
	}
return true
}

function ValidateDate(month,day,year){
	var dt=month.value+'/'+day.value+'/'+year.value;
	
	if (isDate(dt)==false){
		
		return false
	}
    return true
 }
 
 
function valButton(btn) {
    var cnt = -1;
    for (var i=btn.length-1; i > -1; i--) {
    	
        if (btn[i].checked) {cnt = i; i = -1;}
    }
    if (cnt > -1) return btn[cnt].value;
    else return null;
}
 
function showSimpleDiv(container)
{
	document.getElementById(container).style.display='block';
}             

function hidediv(container)
{
	document.getElementById(container).style.display='none';
}       


function textCounter(input, limit)
{
	if(input.value.length > limit)
	{
		input.value = input.value.substring(0, limit);
	}
}

function selectUnselectAll(form)
{
	for (i=0; i < form.elements.length; i++)
	{
		
		form.elements[i].checked = !form.elements[i].checked;
			
	}
} 

function addToDate(date,inc)
{
	date = new Date(date); 
	date.setDate(date.getDate()+inc); 
	var month = date.getMonth()+1;
	var day = date.getDate();
	var year = date.getFullYear();
	date = month+"/"+day+"/"+year;
	return date;

}