var da = document.all;

var de = document.getElementById;

var op = window.opera?1:0;





function setActiveStyleSheet(title) {

	var i, a, main;

	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {

		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {

		  a.disabled = true;

		  if(a.getAttribute("title") == title) a.disabled = false;

		}

	}

}



swpvis = function(name) {

   if (document.getElementById) {

       current = (document.getElementById(name).style.display == '') ? 'none' : '';

       document.getElementById(name).style.display = current;

			 return true;

   }

   else if (document.all) {

       current = (document.all[name].style.display == 'block') ? 'none' : 'block'

       document.all[name].style.display = current;

       return true;

   }

}



swpimg = function(id,src) {

	if (de) document.getElementById(id).src=src;

	else if (da) document.all[id].src=src;

}



swpimg2 = function(id,src1,src2){

	var btOn = new Image(); btOn.src = src1;

	var btOff = new Image(); btOff.src = src2;

	if (de) document.getElementById(id).src==btOn.src ? document.getElementById(id).src=btOff.src : document.getElementById(id).src=btOn.src;

	else if (da) document.all[id].src==btOn.src ? document.all[id].src=btOff.src : document.all[id].src=btOn.src;

}



openconsola = function(url){

	window.open(url,"consola",'width=760,height=570,scrollbars=yes');

}



function jmpmenu(targ,sel){

	eval(targ+".location='"+sel.options[sel.selectedIndex].value+"'");

}

bgtits1 = function(){}

bgtits2 = function(){}



//SLIDES

slidex=-1;

slidey=0;

pause=0;

var slidet=4;//tempoEmSegundos

function fadeOut(obj) {

	if(da&&!op){

		obj=document.all(obj)

		obj.style.filter="blendTrans(duration=0.5)"

			obj.filters.blendTrans.Apply()

			obj.style.visibility="hidden"

			obj.filters.blendTrans.Play()

	}else if(de){

		document.getElementById(obj).style.visibility="hidden";

	}

}

function fadeIn(obj) {

	eval("surl = document.fslides."+obj+"lnk.value")

	if(de)document.getElementById('slink').href=surl

	if(da&&!op){

		obj=document.all(obj)

		obj.style.filter="blendTrans(duration=0.8)"

			obj.filters.blendTrans.Apply()

			obj.style.visibility="visible"

			obj.filters.blendTrans.Play()

	}else if(de){

		document.getElementById(obj).style.visibility="visible"

	}

}

function slidefwd(){

	if(slidex < nslides-1){

		slidex++;slidey=slidex+1;

		eval("fadeOut('slide"+slidex+"')")

		eval("fadeIn('slide"+slidey+"')")

	}else{

		eval("fadeOut('slide"+nslides+"')")

		eval("fadeIn('slide1')")

		slidex=0

	}

	if(pause==0)slidefwdt=setTimeout("slidefwd()",slidet*1000)

}

function sliderwd(){

	if(slidey>1&&slidex!=0){

		eval("fadeOut('slide"+slidey+"')")

		eval("fadeIn('slide"+slidex+"')")

	}else{

		eval("fadeOut('slide1')")

		eval("fadeIn('slide"+nslides+"')")

		slidex=nslides;slidey=nslides+1

	}

	slidex--;slidey--

	if(pause==0)slidefwdt=setTimeout("slidefwd()",slidet*1000)

}

var btslidex=new Image(); btslidex.src="/img/slides1.gif"

function slidepause(){

	if(de)btslides=document.getElementById('btslides')

	else if(da)btslides=document.all('btslides')

	if(btslides.src=="http://www.iol.pt/img/slides.gif"){

		clearTimeout(slidefwdt);pause=1

		btslides.src=btslidex.src

	}else{

		slidefwdt=setTimeout("slidefwd()",slidet*1000);pause=0

		btslides.src="/img/slides.gif"

	}

}



//MENU SELECT

function MM_jumpMenu(targ,selObj,restore){ //v3.0

  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");

  if (restore) selObj.selectedIndex=0;

}



function MM_setTextOfLayer(objId,x,newText) { //v9.0
  with (document) if (getElementById && ((obj=getElementById(objId))!=null))
    with (obj) innerHTML = unescape(newText);
}