function ventana (pagina) {
var opciones="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=500,height=335,top=15,left=50";
window.open(pagina,"",opciones);
}

<!--
// This file contains functions which provide a workaround the the Eolas vs Microsoft patent dispute, 
// which has resulted in updated versions of IE6 and IE7 displaying a dialog before embedded content is loaded.

function embedquicktime( filename, width, height, showcontroller )
{
	document.write('<object classid=\"clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B\" width=\"' + width + '\" height=\"' + height + '\" codebase=\"http://www.apple.com/qtactivex/qtplugin.cab\">');
	document.write('<param name=\"src\" value=\"' + filename + '\">');
	document.write('<param name=\"controller\" value=\"' + showcontroller + '\">');
	document.write('<param name=\"autoplay\" value=\"true\">');
	document.write('<embed src=\"' + filename + '\" width=\"' + width + '\" height=\"' + height + '\" controller=\"' + showcontroller + '\" autoplay=\"true\" pluginspace=\"http://www.apple.com/quicktime/download/index.html\"></embed>');
	document.write('</object>');
}
// -->