// JavaScript Document

function trim(str)
{
   return str.replace(/^\s*|\s*$/g,"");
}


function popup(popurl)
{
	var win = window.open(popurl,"","width=540px,height=500px,scrollbars=1,statusbar=0,location=0")
	return false;
}


function datediff(){
	return true;	
}

function submitForm(){
	document.getElementById("form1").submit();
	return false;
}

function Popuptext(obj){
	obj.style.display = (obj.style.display != 'none' ? 'none' : '' );
	return false;
} 
function divon(obj){
	obj.style.display = '';
	return false;
}
function divoff(obj){
	obj.style.display = 'none';
	return false;
}  		
	
function changepayment(){
	payment = document.getElementById("paymenttype");

	var paymenttype=payment.options[payment.selectedIndex].value;

	switch(paymenttype){
		case "Invoice":
			divon(document.getElementById("ptinvoice"));
			divoff(document.getElementById("ptcheque"));
			divoff(document.getElementById("ptcreditcard"));
			divon(document.getElementById("ponumdiv"));
			break;
		case "Cheque":
			divoff(document.getElementById("ptinvoice"));
			divon(document.getElementById("ptcheque"));
			divoff(document.getElementById("ptcreditcard"));
			divon(document.getElementById("ponumdiv"));
			break;
		case "Credit Card":
			divoff(document.getElementById("ptinvoice"));
			divoff(document.getElementById("ptcheque"));
			divon(document.getElementById("ptcreditcard"));
			divoff(document.getElementById("ponumdiv"));
			break;
		default:
			divoff(document.getElementById("ptinvoice"));
			divoff(document.getElementById("ptcheque"));
			divoff(document.getElementById("ptcreditcard"));
			divoff(document.getElementById("ponumdiv"));
			break;			
	}
}