$(function(){

/* #gnav
-------------------------------------*/

    var image_cache = new Object();
    $(".rollover a img").not("[@src*='-on.']").each(function(i){
        var imgsrc = this.src;
        var dot = this.src.lastIndexOf('.');
        var imgsrc_on = this.src.substr(0, dot) + '-on' + this.src.substr(dot, 4);
        image_cache[this.src] = new Image();
        image_cache[this.src].src = imgsrc_on;
        $(this).hover(
            function() { this.src = imgsrc_on; },
            function() { this.src = imgsrc; }
        );
    });	

});

function historyBackButton(v){
	var btn = '<input type="button" value="'+v+'" onclick="history.back();" />';
	document.write(btn);
}