function checkframes (pageurl) { 
pageurl=pageurl.toLowerCase(); 
newpageurl=pageurl+"?fr=yes";  
document.write("<FRAMESET framespacing=0 border=0 frameborder=0 cols='30,202,*'>"); 
document.write("<frame name='left' src=/void.html scrolling=no border=no>"); 
document.write("<frame name='vb' src=/vb.html scrolling=no border=no>"); 
document.write("<frame name='main' src="+newpageurl+" scrolling=auto>");
document.write("</FRAMESET>"); 
}