function validateTransaction() {
var amount = document.getElementById("amt");
var card=document.getElementById("card");
var cvn=document.getElementById("cvn");
if (isNaN(amount.value) == true) {
alert("Only numbers can be entered.");
return false;
}
if (card.value==" ")
{
alert("Please select a card");
return false;
}
if (isNaN(cvn))
{
alert("Please enter only numbers");
return false;
}
if (cvn.value==null)
{
alert("Please enter CVN Number");
return false;
}
if (isNaN(amount))
{
alert("Please enter only numbers");
return false;
}
if(amount.value==null)
{
alert("Please enter an amount");
return false;
}
return true;
}