var is_safari=((navigator.userAgent.indexOf("Safari") > -1))? true:false;
function fnKeyPress(e,button)
{
    var targ;
    var code;
    if (!e)
    {
        var e = window.event;
    }
    if (e.target)
    {
        targ = e.target;
    }
    else if (e.srcElement)
    {
        targ = e.srcElement;
    }
    if (targ.nodeType == 3)
    {
        targ = targ.parentNode;
    }
    if (e.keyCode)
    {
        code = e.keyCode;
    }
    else if (e.which)
    {
        code = e.which;
    }
    if(!is_safari)
    {
        if(code == 13)
        {         
            document.getElementById(button).click();
            return false;
        }
    }
    else
    {    
        if(code == 13 || code == 3)
        {           
           document.getElementById(button).click();
           return false;
        }
    } 
    return true;
}