function lightShow(b,c){b.blur();var d=document.getElementById("light");if(d){d.style.display="block";if(c){d.style.marginTop=c}}if((d=document.getElementById("fade"))){d.style.height=document.body.scrollHeight;d.style.display="block"}return false}function lightHide(b){b.blur();var c=document.getElementById("light");if(c){c.style.display="none"}if((c=document.getElementById("fade"))){c.style.display="none"}return false};