function w800x600(imagen){
	var propiedades = 'height=300,width=400,top='+(screen.height-300)/2+',left='+(screen.width-400)/2+',scrollbars=no,resizable=no,dependent=yes,alwaysraised=yes,toolbar=no';
	msgWindow=window.open('w800x600.asp?imagen='+imagen,'vtn800x600',propiedades);
	msgWindow.focus();
}
function w1024x768(imagen){
	var propiedades = 'height=384,width=512,top='+(screen.height-384)/2+',left='+(screen.width-512)/2+',scrollbars=no,resizable=no,dependent=yes,alwaysraised=yes,toolbar=no';
	msgWindow=window.open('w1024x768.asp?imagen='+imagen,'vtn1024x768',propiedades);
	msgWindow.focus();
}
function w1280x960(imagen){
	var propiedades = 'height=480,width=640,top='+(screen.height-480)/2+',left='+(screen.width-640)/2+',scrollbars=no,resizable=no,dependent=yes,alwaysraised=yes,toolbar=no';
	msgWindow=window.open('w1280x960.asp?imagen='+imagen,'vtn1280x960',propiedades);
	msgWindow.focus();
}
function w1280x1024(imagen){
	var propiedades = 'height=480,width=640,top='+(screen.height-480)/2+',left='+(screen.width-640)/2+',scrollbars=no,resizable=no,dependent=yes,alwaysraised=yes,toolbar=no';
	msgWindow=window.open('w1280x960.asp?imagen='+imagen,'vtn1280x960',propiedades);
	msgWindow.focus();
}
function w1600x1200(imagen){
	var propiedades = 'height=600,width=800,top='+(screen.height-600)/2+',left='+(screen.width-800)/2+',scrollbars=no,resizable=no,dependent=yes,alwaysraised=yes,toolbar=no';
	msgWindow=window.open('w1600x1200.asp?imagen='+imagen,'vtn1600x1200',propiedades);
	msgWindow.focus();
}