function charsCount(theField, numChars) {
strLen = theField.value.length;
if (strLen > numChars ) {
theField.value = theField.value.substring(0, numChars);
charsLeft = 0;
}
else {
charsLeft = numChars - strLen;
}
document.articoli.messageLength.value = charsLeft;
}
function openPictureWindow(imageName,alt) {
newWindow = window.open("","newWindow","scrollbars=no");
newWindow.document.open();
newWindow.document.write('');
newWindow.document.write('');
newWindow.document.write(''+alt+'');
newWindow.document.write('![\"'+alt+'\"](\"'+imageName+'\")
');
newWindow.document.write('');
newWindow.document.close();
newWindow.focus();
}