
function popnoscroll(linkpop,w,h,scroll) {
LeftPosition =(screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
window.open(linkpop,'new','width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+'')
}

function popup(wname, linkpop,w,h,scroll) {
LeftPosition =(screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
window.open(linkpop,wname,'width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+'')
}



function showLay(layId) {
eval("styleUsed="+layId+".style.display;");
if (styleUsed=="none") { eval(""+layId+".style.display='block';"); } 
else { eval(""+layId+".style.display='none';"); }
}

function popImage(imageURL,imageTitle){
//really not important (the first two should be small for Opera's sake)
PositionX = 200;
PositionY = 200;
defaultWidth  = 200;
defaultHeight = 100;

//kinda important
var AutoClose = true;

	var imgWin = window.open('','_blank','scrollbars=no,resizable=0,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY);
	if( !imgWin ) { return true; } //popup blockers should not cause errors
	imgWin.document.write('<html><head><title>'+imageTitle+'<\/title><script type="text\/javascript">\n'+
		'function resizeWinTo() { \n'+
		'if( !document.images.length ) { document.images[0] = document.layers[0].images[0]; }'+
		'var oH = document.images[0].height, oW = document.images[0].width;\n'+
		'if( !oH || window.doneAlready ) { return; }\n'+ //in case images are disabled
		'window.doneAlready = true;\n'+ //for Safari and Opera
		'var x = window; x.resizeTo( oW + 200, oH + 200 );\n'+
		'var myW = 0, myH = 0, d = x.document.documentElement, b = x.document.body;\n  '+
		'if( x.innerWidth ) { myW = x.innerWidth; myH = x.innerHeight;}\n'+
		'else if( d && d.clientWidth ) { myW = d.clientWidth; myH = d.clientHeight; }\n'+
		'else if( b && b.clientWidth ) { myW = b.clientWidth; myH = b.clientHeight; }\n'+
		'if( window.opera && !document.childNodes ) { myW += 16; }\n'+
		'x.resizeTo( oW = oW + ( ( oW + 200 ) - myW ), oH = oH + ( (oH + 200 ) - myH ) );\n'+
		//'var scW = 500;\n'+
		'var scW = screen.availWidth ? screen.availWidth : screen.width;\n'+
		'var scH = screen.availHeight ? screen.availHeight : screen.height;\n'+
		//'if( !window.opera) { x.moveTo(Math.round((scW-oW)/2),Math.round((scH-oH)/2)); }alert(scW );\n'+
		'if( !window.opera ) { x.moveTo(Math.round((scW-oW)/200)+30,Math.round((scH-oH)/200)+40); };\n'+
		'}\n'+
		'<\/script>'+
		'<\/head><body onload="resizeWinTo();"'+(AutoClose?' ':'')+' bgcolor="white">'+
		(document.layers?('<layer left="0" top="0">'):('<div style="position:absolute;left:0px;top:0px;display:table;">'))+
		//'<img src="/cont/resizeimg.aspx?i='+imageURL+'&e=jpg&w=190" alt="Loading image ..." title="" onload="resizeWinTo();">'+
		'<img src='+imageURL+' alt="Loading image ..." title="" onload="resizeWinTo();">'+
		(document.layers?'<\/layer>':'<\/div>')+'<\/body><\/html>');
	imgWin.document.close();
	if( imgWin.focus ) { imgWin.focus(); }
	return false;
}     

function y2k(number) { 
	return (number < 1000) ? number + 1900 : number; 
}
function dataValida(txt){
	var re = /^\d{1,2}\/\d{1,2}\/\d{4}$/
	if(re.test(txt)){
		var adata = txt.split('/');
		var gg = parseInt(adata[0],10);
		var mm = parseInt(adata[1],10);
		var aaaa = parseInt(adata[2],10);
		var xdata = new Date(aaaa,mm-1,gg)
		if((y2k(xdata.getYear())==aaaa) && (xdata.getMonth()==mm-1) && (xdata.getDate()==gg))
			return xdata
		else return false
	}else return false
}
function dateDiff(dataa,datab){
	var diffMilli = dataa.getTime()-datab.getTime()
	var divisore = 86400000
	return Math.round(diffMilli/divisore)
}
function GiorniDiff(txtdataa,txtdatab){
	var aDataA = dataValida(txtdataa);
	var aDataB = dataValida(txtdatab);
	var giorni=''
	if(aDataA && aDataB)
		giorni = dateDiff(aDataA,aDataB)	
	return giorni*-1
}




