function adjust_window()
{
	window.resizeTo(document.body.scrollWidth,document.body.scrollHeight+40);
	var sizex = screen.width;
	var sizey = screen.height;
	var navx = window.document.body.offsetWidth;
	var navy = window.document.body.offsetHeight;
	window.moveTo((sizex-navx)/2,(sizey-navy)/2);

}

function open_image(imagefile)
{
	window.open('/viewimage.asp?url_imagen='+imagefile,'','WIDTH=30,HEIGHT=30');
}