jQuery.preloadImages = function(){
	for(var i = 0; i<arguments.length; i++){
		jQuery("<img>").attr("src", arguments[i]);
	}
}

function ChangeImage(id,img,link){
	$('#img_gran_prod').attr("href",link); 
	$('#'+id).attr("src",img); 
}

function Chage_styles(div,active){
	$('#'+div+'_esq').attr("src",'/media/bg_nav_esq_'+active+'.png'); 
	//$('#'+div+'_center').className("bg_nav_center_"+active);
	$('#'+div+'_center').css("background-image","url(/media/bg_nav_c_"+active+".png)");
	$('#'+div+'_der').attr("src",'/media/bg_nav_dret_'+active+'.png'); 
}

function Chage_stateImage(id,image){
	$('#'+id).css("background-image","url(/media/"+image+")");
}