function wopen (img_url,win_title,win_width,win_height)
{
var img_url,win_title,win_width,win_height;
var uri="http://www.zimmerei-portack-grille.de/";
var win_awidth=+win_width+0;
var win_aheight=+win_height+90;
var win=window.open("","","left=50px,top=50px,width="+win_awidth+",height="+win_aheight);
win.document.open('text/html');
win.document.write(''+win_title+'');
win.document.write('');
win.document.write('