/**
 * Ajustes de jQuery.
 * @version 1
 * @author Pablo Viojo
 */

jQuery.extend({
	getScript: function( url, callback ) {
		return jQuery.get(url, null, callback, "script", 0, true);
	},
	
	param: function( a ) {
		var s = [];

		// If an array was passed in, assume that it is an array
		// of form elements
		if ( a.constructor == Array || a.jquery )
			// Serialize the form elements
			jQuery.each( a, function(){
				s.push( escape(this.name) + "=" + escape( this.value ) );
			});

		// Otherwise, assume that it's an object of key/value pairs
		else
			// Serialize the key/values
			for ( var j in a )
				// If the value is an array then the key names need to be repeated
				if ( a[j] && a[j].constructor == Array )
					jQuery.each( a[j], function(){
						s.push( escape(j) + "=" + escape( this ) );
					});
				else
					s.push( escape(j) + "=" + escape( a[j] ) );

		// Return the resulting serialization
		return s.join("&");
	}
});

jQuery.fn.extend({

	fadeIn: function(speed, callback){
		if ($.browser.msie){
			if (jQuery(this).css('opacity')==0){
				jQuery(this).css({opacity:1});
			}
			return this.show(1,callback);
			
		} else {
			return this.animate({opacity: "show"}, speed, callback);
		}
	},
	fadeOut: function(speed, callback){
		if ($.browser.msie){
			$(this).hide(1,callback);
			return this;
		} else {
			return this.animate({opacity: "hide"}, speed, callback);
		}
	}
});