function isNumeric(input)
{
   return (input - 0) == input && input.length > 0;
}

//Querystring Finder
function getParameterByName( name )
{
    name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
    var regexS = "[\\?&]"+name+"=([^&#]*)";
    var regex = new RegExp( regexS );
    var results = regex.exec( window.location.href );
    if( results == null )
    return "";
    else
    return results[1];
}