//roll over de imagens
var tmp='';
var src_tmp = '';

function Rover(imagem,nova) {
      if (tmp != imagem) {
      imagem.src=nova;
      } else {
	  src_tmp = nova;
	  };
}
//******* Obrigatorio ter o findDOM.js*********/
function mudarStyle(objID,styleNome,newVal){
	var dom=findDOM(objID,1);
	dom[styleNome]=newVal;
}
function setClass(objID,newClass){
	var dom=findDOM(objID,0);
	dom.className=newClass;
}
// ABRIR uma Janela centrada no ecra
var win= null;
function NewWindow(mypage,myname,w,h,scroll){
var winl = (screen.width-w)/2;
var wint = (screen.height-h)/2;
var settings ='height='+h+',';
settings +='width='+w+',';
settings +='top='+wint+',';
settings +='left='+winl+',';
settings +='scrollbars='+scroll+',';
settings +='resizable=no';
win=window.open(mypage,myname,settings);
if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
} 
//preloding de imagens. Esta funcao deve ser colocado no BODY-> <BODY onLoad="PreloadImg('imgs/fundo_index.jpg','imgs/fundo_copyrigth.gif');">
function PreloadImg() { 
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=PreloadImg.arguments; for(i=0; i < a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
