PositionX = 100;
PositionY = 100;
defaultWidth  = 500;
defaultHeight = 500;
var AutoClose = true;
if (parseInt(navigator.appVersion.charAt(0))>=4){
var isNN=(navigator.appName=="Netscape")?1:0;
var isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;}
var optNN='scrollbars=no,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY;
var optIE='scrollbars=no,width=150,height=100,left='+PositionX+',top='+PositionY;
function popImage(imageURL,imageTitle){
if (isNN){imgWin=window.open('about:blank','',optNN);}
if (isIE){imgWin=window.open('about:blank','',optIE);}
with (imgWin.document){
writeln('<html><head><title>Cargando ...</title><style>body{margin:0px;}</style>');writeln('<sc'+'ript>');
writeln('var isNN,isIE;');writeln('if (parseInt(navigator.appVersion.charAt(0))>=4){');
writeln('isNN=(navigator.appName=="Netscape")?1:0;');writeln('isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;}');
writeln('function reSizeToImage(){');writeln('if (isIE){');writeln('window.resizeTo(100,100);');
writeln('width=100-(document.body.clientWidth-document.images[0].width);');
writeln('height=100-(document.body.clientHeight-document.images[0].height);');
writeln('window.resizeTo(width,height);}');writeln('if (isNN){');       
writeln('window.innerWidth=document.images["imagenes"].width;');writeln('window.innerHeight=document.images["imagenes"].height;}}');
writeln('function doTitle(){document.title="'+imageTitle+'";}');writeln('</sc'+'ript>');
if (!AutoClose) writeln('</head><body bgcolor=000000 scroll="no" onload="reSizeToImage();doTitle();self.focus()">')
else writeln('</head><body bgcolor=ffffff scroll="no" onload="reSizeToImage();doTitle();self.focus()" onblur="self.close()">');
writeln('<img name="imagenes" src='+imageURL+' style="display:block"></body></html>');
close();		
}}
function envia(pag){
    document.frmbuscador.action= pag;
    document.frmbuscador.submit();
}

function _cupon(){
	document.getElementById('cuponObt').style.display = 'none';
	document.getElementById('cuponImp').style.display = 'block';
	document.getElementById('documento').value = '';
	document.getElementById('documento').focus();
}

function _valFrm(f){
	if(f['documento'].value == ''){ f['documento'].className='invalid'; f['documento'].focus(); }
	else{ 
		if((dni=_valDNI(f['documento'].value)) == ''){ f['documento'].className='invalid'; f['documento'].focus(); }
		else{ f['documento'].value = dni; f.submit(); _hideCupon(); }
	}
}

function _hideCupon(){ 	
	document.getElementById('cuponObt').style.display = 'block';
	document.getElementById('cuponImp').style.display = 'none';
	document.getElementById('aCupon').style.display = 'none';
}

function _valDNI(dni){
	if(dni.length == 10){
		if(dni.indexOf('-') == -1) return '';
	}
	else{
		if(dni.length == 8){
			if(isNaN(parseInt(dni))) return '';
			else{
				cadena="TRWAGMYFPDXBNJZSQVHLCKET"
				dni = dni+'-'+cadena.substring((dni%23),((dni%23)+1));
			}
		}
		else
			return '';
	}
	return dni;
}

function _popUp(URL)
{
	var destino = URL;
	var ancho = 480;
	var alto = 500;
	var arriba = ((screen.availHeight/2)-(alto/2));
	var derecha = ((screen.availWidth/2)-(ancho/2));
	window.open(destino,
				'windowname',
				'width='+ancho+',height='+alto+',resizable=0,location=0,toolbar=0,directories=0,status=0,menubar=0,scrollbars=1,top='+arriba+',left='+derecha+'')
}