function midatext(mida){
	SetCookie ("lletra",mida);
	history.go(0);
}
function writebig(){
	document.write("<link rel=\"stylesheet\" type=\"text/css\" href=\"/styles/big.css\"/>");
}
function midalletra(){
	mida=GetCookie("lletra");
	if(mida=="2"){
		document.getElementById("mida1").src="/img/mida1.gif";
		document.getElementById("mida2").src="/img/mida2_on.gif";
	}
	else{
		document.getElementById("mida1").src="/img/mida1_on.gif";
		document.getElementById("mida2").src="/img/mida2.gif";
	}
}
function SetCookie (name, value) { 
	var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : null;
    var path = (argc > 3) ? argv[3] : "/";
    var domain = (argc > 4) ? argv[4] : null;
    var secure = (argc > 5) ? argv[5] : false;
    document.cookie = name + "=" + escape (value)+((expires == null) ? "" : ("; expires=" + expires.toGMTString()))+((path == null) ? "" : ("; path=" + path))+((domain == null) ? "" : ("; domain=" + domain))+((secure == true) ? "; secure" : "");
}

function getCookieVal (offset) {
   var endstr = document.cookie.indexOf (";", offset);
   if (endstr == -1)  endstr = document.cookie.length;
   return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
	var arg = name + "=";
    var alen = arg.length;        
	var clen = document.cookie.length;
    var i = 0;       
	while (i < clen) {        
	     var j = i + alen;
    	 if (document.cookie.substring(i, j) == arg)
    	 return getCookieVal (j);
	     i = document.cookie.indexOf(" ", i) + 1;
         if (i == 0) break;         
	 }
	return null;
}
function toggle(showhide){
	arLayers=toggle.arguments;
	displaycss=(showhide)?"block":"none";
	if(arLayers.length>1){
		for(i=1;i<arLayers.length;i++){
			document.getElementById(arLayers[i]).style.display=displaycss;
		}
	}
}
function referee_set(){
	if(document.getElementById("referee2").style.display=="none"){
		toggle(1,"referee2");
	}
	else{
		toggle(1,"referee3");
		toggle(0,"another_referee");
	}
}

function toogleRequiredDegree(select)
{	
	if(select == undefined)	select = document.getElementById("job");
	if(select == undefined) return;
	
	thisJob = select.value;
	if(thisJob == '') return;
	
	isPhdRequired = eval('phdRequired_job_' + thisJob);

	if(isPhdRequired == true)
	{
		toggle(1, "mandatory_legend_phd");
		toggle(0, "mandatory_legend_engineering");		
	}
	else
	{
		toggle(1, "mandatory_legend_engineering");
		toggle(0, "mandatory_legend_phd");
	}
}