RegExp.prototype.harfRakam=function(str){
return  (this.test(str)) ? str.replace(this,"") : str ;
}  
function sadecerakam(yazi){
var q=/[^0-9 ]+/g;
yazi.value= q.harfRakam(yazi.value);
} 
var dRatesLow;
var dRatesHigh;

dRatesLow = new Array("3.10", "3.25", "3.30"  ,"3.55", "3.80", "4.00");
dRatesHigh = new Array("3.10", "3.25", "3.30"  ,"3.55", "3.80", "4.00");

//added 26.10.2011
//period 3 months will be removed according to the following bussiness rule
//3 months: 3.00% only valid till 20 November, 2011(minimum amount EUR 10.000,00) 
//this function is called from tebnveng.html file 
//you should check at the end of file and removed it also if you delete the following function (deleteComboElement)
//
//var currentTime = new Date();
//var validUntil = new Date(2011,10,20); //10 will be November
//var month = currentTime.getMonth() + 1 //months starting index is 0
//var day = currentTime.getDate();
//var year = currentTime.getFullYear();


//if(currentTime > validUntil) {
//    var x=document.getElementById("period");
//    x.remove(0); //point to period rate 3 months = 3.00%
//    //alert("Current Date ==> " + currentTime + " \n " + " Valid Until ==> " + validUntil);
//    dRatesLow = new Array("3.10", "3.25", "3.30"  ,"3.55", "3.80", "4.00");
//    dRatesHigh = new Array("3.10", "3.25", "3.30"  ,"3.55", "3.80", "4.00");
//}

 




function PeriodChange()
{
	var deposit = document.contactform.deposit.value;
	if(deposit=="")
	{
		alert("Gaarne hoofdsom invoeren");
		document.contactform.deposit.focus();
		return;
	}
	var iDeposit = eval(deposit);
	var iPeriod = document.contactform.period.selectedIndex;	
	if(iDeposit<1000)
	{
		alert("Minimale inleg is €1.000");
		document.contactform.deposit.focus();		
		return;
	}
	else if(iDeposit<40000)
	{
		document.contactform.interest_rate.value = dRatesLow[iPeriod];
		return;
	}
	else
	{
		document.contactform.interest_rate.value = dRatesHigh[iPeriod];		
		return;
	}

}

function CalculateInterest()
{
	var deposit = document.contactform.deposit.value;
	if(deposit=="")
	{
		alert("Gaarne hoofdsom invoeren");
		document.contactform.deposit.focus();
		return;
	}
	var iDeposit = eval(deposit);
	
    
	if(iDeposit<1000)
	{
		alert("Minimale inleg is €1.000");
		document.contactform.deposit.focus();		
		return;
	}	
	var periodyear = document.contactform.period.options[document.contactform.period.selectedIndex].value;
	var rate = document.contactform.interest_rate.value;
	var interest = deposit*periodyear*rate/100;
	
	interest = interest*100;
	interest = Math.round(interest);
	interest = interest / 100;
	var total = Number(deposit) + Number(interest);
	document.contactform.total.value = total;	
}