var params = { width:1900, height:1200 };

var str = jQuery.param(params);

console.log(str);

function serializeData( data ) {

    // If this is not an object, defer to native stringification.

    if ( ! angular.isObject( data ) ) {

        return( ( data == null ) ? "" : data.toString() );

    }

    var buffer = [];

    // Serialize each key in the object.

    for ( var name in data ) {

        if ( ! data.hasOwnProperty( name ) ) {

            continue;

        }

        var value = data[ name ];

        buffer.push(

            encodeURIComponent( name ) + "=" + encodeURIComponent( ( value == null ) ? "" : value )

        );

    }

    // Serialize the buffer and clean it up for transportation.

    var source = buffer.join( "&" ).replace( /%20/g, "+" );

    return( source );

};