// JavaScript Document
// Original: http://www.webreference.com/dhtml/diner/bgresize/bgresize3.html
// Adaptado por: Fernando Barros 

    NS4 = (document.layers);
    IE4 = (document.all);
    
    scaleWidth = true;
    scaleHeight = true;
	var imgSRC;


    if (NS4) window.onload = setResize;

    function setResize(){
        setTimeout("window.onresize=reDo;",500);
    }

    function reDo(){
        window.location.reload()
    }
	
	function reDoNS(){
		w = (NS4) ? innerWidth : document.body.clientWidth;
		h = (NS4) ? innerHeight : document.body.clientHeight;
		document['imBG'].width=w;
		document['imBG'].height=h;
	}

    if (IE4) window.onresize = reDoIE;

    function reDoIE(){
        imBG.width = document.body.clientWidth;
        imBG.height = document.body.clientHeight;
    }

    function makeIm(name) {
		switch(name)
		{
			case "home":
				var randombgs=["Images/home/entrada2_lomo.jpg","Images/home/entrada_lomo.jpg", "Images/home/cortina_lomo.jpg", "Images/home/fora_lomo.jpg", "Images/agenda/jardim_lomo.jpg"];
				var source = Math.floor(Math.random()*(randombgs.length));
					imSRC = randombgs[source];
				break;    
			case "agenda":
				var randombgs=["Images/agenda/jardim3.jpg", "Images/agenda/jardim_lomo.jpg","Images/agenda/jardim_lomo2.jpg","Images/agenda/lustre_lomo.jpg","Images/agenda/lustre_lomo2.jpg","Images/agenda/lustre_lomo3.jpg","Images/agenda/tecto_lomo.jpg","Images/agenda/bar.jpg"];
				var source = Math.floor(Math.random()*(randombgs.length));
					imSRC = randombgs[source];
				break;
			case "escolas":
				imSRC = "Images/Escolas/escolas.jpg";
				break;
			case "salaensaio":
				imSRC = "Images/SalasEnsaio/ensaio_lomo.jpg";
				break;
			case "estudio":
				var randombgs=["Images/estudio/estudio2_lomo.jpg", "Images/estudio/estudio3_loo.jpg", "Images/estudio/estudio4_lomo.jpg", "Images/estudio/estudio5.jpg", "Images/estudio/estudio.jpg"];
				var source = Math.floor(Math.random()*(randombgs.length));
					imSRC = randombgs[source];
				break;
			default:
				var randombgs=["Images/home/entrada2_lomo.jpg","Images/home/entrada_lomo.jpg", "Images/home/cortina_lomo.jpg", "Images/home/fora_lomo.jpg", "Images/home/lona_lomo.jpg", "Images/agenda/jardim3.jpg", "Images/agenda/jardim_lomo.jpg","Images/agenda/jardim_lomo2.jpg","Images/agenda/lustre_lomo.jpg","Images/agenda/lustre_lomo2.jpg","Images/agenda/lustre_lomo3.jpg","Images/agenda/tecto_lomo.jpg","Images/agenda/bar.jpg", "Images/Escolas/escolas.jpg", "Images/SalasEnsaio/ensaio_lomo.jpg", "Images/Estudio/estudio2_lomo.jpg", "Images/Estudio/estudio3_loo.jpg", "Images/Estudio/estudio4_lomo.jpg", "Images/Estudio/estudio5.jpg", "Images/Estudio/estudio.jpg"];
				var source = Math.floor(Math.random()*(randombgs.length));
					imSRC = randombgs[source];
				break;
		}
		
    
      winWid = (NS4) ? innerWidth : document.body.clientWidth;
      winHgt = (NS4) ? innerHeight : document.body.clientHeight;
    
      imStr = "<DIV ID=bground"
      + " STYLE='position:absolute;left:0;top:0;z-index:-1'>"
      + "<IMG NAME='imBG' BORDER=0 SRC=" + imSRC;
      if (scaleWidth) imStr += " WIDTH=" + winWid;
      if (scaleHeight) imStr += " HEIGHT=" + winHgt;
      imStr += "></DIV>";
    
      document.write(imStr);

}