function changeColor(id, nimagen, vimagen ){
	element = document.getElementById(id);
	document[nimagen].src = "../user/images/"+vimagen;
	element.style.cursor = "pointer";
	element.style.cursor = "hand";
    }
    
    function cabeceraHand(id)
    {
	element = document.getElementById(id);
	element.style.cursor = "pointer";
	element.style.cursor = "hand";
    }
    
    function selMenu(num){
	switch(num){
	case 3:
	    window.location = "../user/catering.php?id_cat="+num;
	    break;
	case 6:
	    window.location = "../user/novedades.php?id_cat="+num;
	    break;
	default:
	    window.location = "../user/pagina.php?id_cat="+num;
	    break;
	}
    }

    function setSize(){

	var left = "";
	var right = "";
	if ( document.getElementById('left_size') ){
	    left = document.getElementById('left_size').offsetHeight;
	}

	if ( document.getElementById('right_size') ){
	    right = document.getElementById('right_size').offsetHeight;
	}

	if ( left > right ){

	    if ( document.getElementById('content_size') ){
		document.getElementById('content_size').style.height = document.getElementById('content_size').offsetHeight + ( ( left -right ) - 17 ) + "px";
	    }


	    if ( document.getElementById('content_size_catering') ){
		document.getElementById('content_size_catering').style.height = document.getElementById('content_size_catering').offsetHeight + ( ( left -right ) ) + "px";
	    }


	    if ( document.getElementById('content_size_header') ){
		document.getElementById('content_size_header').style.height = document.getElementById('content_size_header').offsetHeight + ( ( left -right ) - 17 ) + "px";
	    }

	    if ( document.getElementById('content_size_novedades') ){
		document.getElementById('content_size_novedades').style.height = document.getElementById('content_size_novedades').offsetHeight + ( ( left -right ) ) + "px";
	    }
	}
    }