function centra(nometag) {
	left = findleft(nometag);
	height = findheight(nometag);
	if (left!=0) document.write('<style>' + nometag + ' {left:' + left +'\;}</style>');
	if (height!=0) document.write('<style>' + nometag + ' {height:' + height +'\;}</style>');
}
function findleft(nometag) {
	left = 0;
	if (navigator.appName == 'Microsoft Internet Explorer' && (screen.width - screenLeft)>1024) left = (screen.width - screenLeft - 1024)/2 + 'px';
	else if (window.innerWidth>1024) left = (window.innerWidth - 1024)/2 + 'px';
	return left;
}
function findheight(nometag) {
	height = 0;
	if (navigator.appName == 'Microsoft Internet Explorer' && screen.height>768) height = '901px';
	else if (window.innerHeight>602)  height = '100%';
	return height;
}

function on_resize(id) {
	centraorizzontale(id);
	riempivericale(id);
}
function riempivericale(id) {
	element = document.getElementById(id);
	if (navigator.appName == 'Microsoft Internet Explorer' && screen.height>768) element.style.height = '901px';
	else if (window.innerHeight>602)  element.style.height = '100%';
}
function centraorizzontale(id) {
	element = document.getElementById(id);
	if (navigator.appName == 'Microsoft Internet Explorer' && (screen.width - screenLeft)>1024) element.style.left = ((screen.width - screenLeft - 1024)/2) + "px";
	else if (window.innerWidth>1024) element.style.left = ((window.innerWidth - 1024)/2) + "px";
}