function fitBackground() {
	if (screen.width == 1280) { 
		document.body.style.backgroundImage = 'url(background_1280x960.jpg)'; 
	}
	else if (screen.width == 1152) { 
		document.body.style.backgroundImage = 'url(background_1152x864.jpg)'; 
	}
	else { 
		document.body.style.backgroundImage = 'url(background.jpg)'; 
	}
}

function fitHeight(value) {
	var alto = 0;
	
	if (screen.availHeight > document.getElementById(value).offsetHeight) {
		alto = Number(screen.availHeight) - Number(document.getElementById(value).offsetHeight) - 21;
		document.getElementById('pie').style.height = alto + 'px';
	}
}

function MM_preloadImages() {
	var d = document;
	
	if (d.images) {
		if(!d.MM_p) d.MM_p=new Array();
		var i;
		var j = d.MM_p.length;
		var 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() {
	var i;
	var x;
	var 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) {
	var p;
	var i;
	var 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() {
	var i;
	var j = 0;
	var x;
	var 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];
	}
}