function enableField(field, enableFlag){
	if(enableFlag){
		field.disabled = false;
		field.value="";
	}else{
		field.disabled = true;
		field.value="N/A";
	}
}

function updateAmt(x)
// updates 'amount' when clicked
	{
		document.donate.amount.value = x;
		document.donate.amount2.disabled = true;
		document.donate.amount2.value = '';
	}
function enableInput()
// enables input box for custom amount
	{
		document.donate.amount.value = '';
		document.donate.amount2.disabled = false;
		document.donate.amount2.value = "enter amount";
	}
function changeAmt()
// updates 'amount' when custom amount is entered
	{
		document.donate.amount.value = document.donate.amount2.value;
	}
function noAlpha(obj)
// restrict input to only numbers , and .
	{
	reg = /[^0-9.,]/g;
	obj.value =  obj.value.replace(reg,"");
	 }