//This function prevents the enter button from submiting
function noenter() 
{    
    return !(window.event && window.event.keyCode == 13 && window.event.srcElement.type != "textarea");
}

//This function checks if the input is all numbers
//return true if the input is only numbers
function validateOnlyNumbersInput(input)
{
        var bolReturn = false; 
        if(input!="")
        {
            var cInput =  new Array();
            for (var i =0; i < input.length; i++) 
            {
                    cInput[i] = input.charCodeAt(i);
                    if ( (parseInt(cInput[i]) >= 48 && parseInt(cInput[i]) <= 57  ) ) 
                            bolReturn = true;			
                    
                    else
                    {
                            bolReturn = false;
                            break;
                    }
            }
        }
        else
                bolReturn =  true;
                
        return bolReturn;
}

// This Function trims all inputs in the form
function trimAll(form){
	var items = form.elements;
	for(var i=0; i<items.length; i++){
		if(items[i].id != null && items[i].id != ''){
	    	var item = document.getElementById(items[i].id);
	        if(item.type == 'text' || item.type == 'textarea'){
				if(item.value != null && item.value != '')
					item.value = trimStr(item.value);
	        }
	        if(item.type == 'textarea')
	        {
	        	item.value= trimEnter(item.value)
	        }
	    }
	}
}

function trimEnter(sString){

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

//This function is used to trim strings
function trimStr(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;
}

//returns true is there are no special characters
function validateSpecialCharacters(input) 
{
  var bolReturn = true; 
  if(input!="")
  {
    var cInput =  new Array();
    for (var i =0; i < input.length; i++) 
    {
      cInput[i] = input.charCodeAt(i);
    
      if ((parseInt(cInput[i]) >= 33 && parseInt(cInput[i]) <= 47 ) || (parseInt(cInput[i]) >= 58 && parseInt(cInput[i]) <= 64 )||(parseInt(cInput[i]) >= 91 && parseInt(cInput[i]) <= 96 )||(parseInt(cInput[i]) >= 123 && parseInt(cInput[i]) <= 126 )) 
        bolReturn = false;
    }
  }	
  return bolReturn;
}

function validateSpecialCharactersForAddress(input) 
{
  var bolReturn = true; 
  if(input!="")
  {
    var cInput =  new Array();
    for (var i =0; i < input.length; i++) 
    {
      cInput[i] = input.charCodeAt(i);
      if ((parseInt(cInput[i]) >= 33 && parseInt(cInput[i]) <= 43 ) || (parseInt(cInput[i]) >= 58 && parseInt(cInput[i]) <= 64 )||(parseInt(cInput[i]) >= 91 && parseInt(cInput[i]) <= 94 )||(parseInt(cInput[i]) >= 123 && parseInt(cInput[i]) <= 126 )) 
        bolReturn = false;
    }
  }	
  return bolReturn;
}

function validateSpecialCharactersForName(input) 
{
  var bolReturn = true; 
  if(input!="")
  {
    var cInput =  new Array();
    for (var i =0; i < input.length; i++) 
    {
      cInput[i] = input.charCodeAt(i);
    
      if ((parseInt(cInput[i]) >= 33 && parseInt(cInput[i]) <= 44 )|| (parseInt(cInput[i]) >= 46 && parseInt(cInput[i]) <= 47 ) || (parseInt(cInput[i]) >= 58 && parseInt(cInput[i]) <= 64 )  ||(parseInt(cInput[i]) >= 91 && parseInt(cInput[i]) <= 94 ) || parseInt(cInput[i]) ==96 ||(parseInt(cInput[i]) >= 123 && parseInt(cInput[i]) <= 126 )) 
        bolReturn = false;
    }
  }	
  return bolReturn;
}

function imposeMaxLength(object,maxLen,event)
{
    if(event.keyCode == 8 || event.keyCode==46)
        return true;
    return (object.value.length<maxLen);
}

function validateNoArabicInput(input) 
{
        
      /*  var bolReturn = true; 
        if(input!="")
        {
            var cInput =  new Array();
            for (var i =0; i < input.length; i++) 
            {
                    cInput[i] = input.charCodeAt(i);
                  
                    if ( parseInt(cInput[i]) >= 1571 && parseInt(cInput[i]) <= 1610 ) 
                            bolReturn = false;
            }
        }		
        return bolReturn;*/
        
        var bolReturn = true;
	if(!RegExp("^[^\u0600-\u06ff]*$").test(input)) {
	
	return false;
	}
	return bolReturn;

}

//Date Validation
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,dtCh,minYear,maxYear)
    {
	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)+1;
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		return false;
	}
	if (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 redirect(url){
    window.location.href = url;
}