function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.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];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function DDtoDay(inputDate)
{
  var dateString = new Array('','st','nd','rd','th','th','th','th','th','th','th','th','th','th','th','th','th','th','th','th','th','st','nd','rd','th','th','th','th','th','th','th','st');
  returnDate = '';
  tempDate = parseInt(inputDate);
  if (tempDate >= 1 && tempDate <= 31)
  {
	  returnDate = inputDate + dateString[tempDate];
	}
	return returnDate;
}


function displayWindow(theURL,winName,width,height,features) {
    var window_width = width;
    var window_height = height;
    var newfeatures= features;
    var window_top = (screen.height-window_height)/2;
    var window_left = (screen.width-window_width)/2;
    newWindow=window.open(''+ theURL + '',''+ winName + '','width=' + window_width + ',height=' + window_height + ',top=' + window_top + ',left=' + window_left + ',' + newfeatures + '');
    newWindow.focus();
}
nereidFadeObjects = new Object();
nereidFadeTimers = new Object();
active = new Image();

/* object - image to be faded (actual object, not name);
 * destop - destination transparency level (ie 80, for mostly solid)
 * rate   - time in milliseconds between trasparency changes (best under 100)
 * delta  - amount of change each time (ie 5, for 5% change in transparency)
 */

function nereidFade(object, destOp, rate, delta){
if (!document.all)
return
    if (object != "[object]"){  //do this so I can take a string too
        setTimeout("nereidFade("+object+","+destOp+","+rate+","+delta+")",0);
        return;
    }
        
    clearTimeout(nereidFadeTimers[object.sourceIndex]);
    
    diff = destOp-object.filters.alpha.opacity;
    direction = 1;
    if (object.filters.alpha.opacity > destOp){
        direction = -1;
    }
    delta=Math.min(direction*diff,delta);
    object.filters.alpha.opacity+=direction*delta;

    if (object.filters.alpha.opacity != destOp){
        nereidFadeObjects[object.sourceIndex]=object;
        nereidFadeTimers[object.sourceIndex]=setTimeout("nereidFade(nereidFadeObjects["+object.sourceIndex+"],"+destOp+","+rate+","+delta+")",rate);
    }
}

function fadeactive(object, destOp, rate, delta){
	if (object.src!=active.src) {
	nereidFade(object, destOp, rate, delta);
	}
}

function setactive(object, destOp, rate, delta){
	/*alert(active.src);*/
	tempactive=active;
	active=object;
	fadeactive(tempactive, destOp, rate, delta);
}

function filtering(target, filter){
	myimg=document.getElementById(target);
if (myimg && myimg.style)
    {	
	myimg.style.filter=filter;
	}
}

function restorefilters(target){
		myimg=document.getElementById(target);

if (myimg && myimg.style)
    {	
	myimg.style.filter="";
	}
}

function elige(valor)
{
	checkboxes=document.getElementById("fieldset_proyectos").getElementsByTagName("input");
	for (i=0; i<checkboxes.length; i++)
	{
		switch (parseInt(valor)){
			case 1:
			checkboxes[i].disabled=true;
			checkboxes[i].checked=false;
			break;
			case 3:
			checkboxes[i].disabled=true;
			break;
			default:
			checkboxes[i].disabled=false;
			break;
		}
	}
}