// JavaScript Document
// JavaScript Document
function emailvalidation(entered, alertbox)
{

with (entered)
{
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
lastpos=value.length-1;
if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2)
{if (alertbox) {alert(alertbox);} return false;}
else {return true;}
}
} 


function otherValidation(entered){
	//Validating when a usuer checks the "Other" radio button
	with(entered){
		if((checked==true) &&(value=="Other")){
			return true;
			}else
				return false;
		
		}
	
	}

function radioCheckValidation(entered, alertbox){
	with (entered){
		if (checked ==false){
			if (alertbox!="") {
				alert(alertbox);
				} 
				return false;
			}else {
				return true;
				}
		}
		
}


function emptyRadioGroupValidation(btn, alertbox) {
    var cnt = -1;
    for (var i=btn.length-1; i > -1; i--) {
        if (btn[i].checked) {cnt = i; i = -1;}
    }
    if (cnt > -1) return true;//btn[cnt].value;
    else {
			if (alertbox!="") {alert(alertbox);} 
			 return false;
		}
}
                  
		
		
		

function emptyvalidation(entered, alertbox)
{

with (entered)
{
if (value==null || value=="")
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
} 


function digitvalidation(entered, min, max, alertbox, datatype)
{

with (entered)
{
checkvalue=parseFloat(value);
if (datatype)
{smalldatatype=datatype.toLowerCase();
if (smalldatatype.charAt(0)=="i")
{checkvalue=parseInt(value); if (value.indexOf(".")!=-1) {checkvalue=checkvalue+1}};
}
if ((parseFloat(min)==min && value.length<min) || (parseFloat(max)==max && value.length>max) || value!=checkvalue)
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
} 



function validateInt(entered, alertbox){
	   with (entered){
		   if((isInteger(value)==false)){
			   if (alertbox!="") {
				   alert(alertbox);
				   } 
				return false;
			}else
				return true;
		   
		   }
	 }

   function validateRange()
   {
      var s = document.frmInput.txtInput.value;
      var A = document.frmInput.txtA.value;
      var B = document.frmInput.txtB.value;

      switch (isIntegerInRange(s, A, B))
      {
         case true:
            alert(s + " is in range from " + A + " to " + B)
            break;
         case false:
            alert(s + " is not in range from " + A + " to " + B)
      }
   }

// isIntegerInRange (STRING s, INTEGER a, INTEGER b)
   function isIntegerInRange (s, a, b)
   {   if (isEmpty(s))
         if (isIntegerInRange.arguments.length == 1) return false;
         else return (isIntegerInRange.arguments[1] == true);

      // Catch non-integer strings to avoid creating a NaN below,
      // which isn't available on JavaScript 1.0 for Windows.
      if (!isInteger(s, false)) return false;

      // Now, explicitly change the type to integer via parseInt
      // so that the comparison code below will work both on
      // JavaScript 1.2 (which typechecks in equality comparisons)
      // and JavaScript 1.1 and before (which doesn't).
      var num = parseInt (s);
      return ((num >= a) && (num <= b));
   }

   
   
   function isInteger (s)
   {
      var i;

      if (isEmpty(s))
      if (isInteger.arguments.length == 1) return 0;
      else return (isInteger.arguments[1] == true);

      for (i = 0; i < s.length; i++)
      {
         var c = s.charAt(i);

         if (!isDigit(c)) return false;
      }

      return true;
   }

   function isEmpty(s)
   {
      return ((s == null) || (s.length == 0))
   }

   function isDigit (c)
   {
      return ((c >= "0") && (c <= "9"))
   }
   



function valuevalidation(entered, min, max, alertbox, datatype)
{
with (entered)
{
checkvalue=parseFloat(value);
if (datatype)
{smalldatatype=datatype.toLowerCase();
if (smalldatatype.charAt(0)=="i") {checkvalue=parseInt(value)};
}
if ((parseFloat(min)==min && checkvalue<min) || (parseFloat(max)==max && checkvalue>max) || value!=checkvalue)
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
} 

function zeroCheck(entered){
	//NB:Not yet working
	
	//if(validateInt
	with(entered){
		
		var val =parseInt(value);
		if(val==0){
			return true;
			}else
				return false;
		}
	
	}



/*==========================================================================================================================================
FORM VALIDATION  FOR HOME PAGE
==========================================================================================================================================*/