javascript: 以javascript取得query string (Netlobo.com | Get URL Parameters Using Javascript)

http://www.netlobo.com/url_query_string_javascript.html

function gup( 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];
}

var myid= gup("id");