// JavaScript Document


function capturekey(e){ 
var key=(typeof event!='undefined')?window.event.keyCode:e.keyCode; 
if(key=="13")
{
check();
}
} 
if(navigator.appName!= "Mozilla")
{
document.onkeyup=capturekey
} 
else{
document.addEventListener("keypress",capturekey,true);
}