function clickButton(e, id){
    var button = document.getElementById(id)
    var keyCode = 0
    if (typeof button != 'object') {
        return true
    }
    if (navigator.appName.indexOf("Netscape") > -1) { 
        keyCode = e.keyCode
    }
    if (navigator.appName.indexOf("Microsoft Internet Explorer") > -1) { 
        keyCode = event.keyCode
    }
    if (keyCode == 13) {
        button.click()
        return false
    }
}