function checkErrors() {
    var error = false;
    var errorMsg = "Please completed all required field including address information";
    if(document.getElementById("pname").value.length < 1) error = true;
    if(document.getElementById("pphone").value.length < 1) error = true;
    if(document.getElementById("pemail").value.length < 1) error = true;
    if(document.getElementById("paddress").value.length < 1) error = true;
    if(document.getElementById("pcity").value.length < 1) error = true;
    if(document.getElementById("ccnum1").value.length < 4) error = true;
    if(document.getElementById("ccnum2").value.length < 4) error = true;
    if(document.getElementById("ccnum3").value.length < 4) error = true;
    if(document.getElementById("ccnum4").value.length < 4) error = true;
    if(document.getElementById("ccowner").value.length < 1) error = true;
    if(document.getElementById("ccendm").value.length < 1) error = true;
    if(document.getElementById("ccendy").value.length < 1) error = true;
    if(document.getElementById("cvv2").value.length < 1) error = true;

    if(error == false) return true;
    else {
	alert(errorMsg);
	return false;
    }
}