function togglemain(){
current=document.getElementById('main')
if(current.style.background.length<1){
current.style.background=''
setCookie("mag_glass","off",10000)
}
if(current.style.background.indexOf('2')==-1){
current.style.background="#F2D6AA"
setCookie("mag_glass","on",10000)
document.getElementById('mag').src="images/magminus.gif"
}
else{
current.style.background=""
setCookie("mag_glass","off",10000)
document.getElementById('mag').src="images/magplus.gif"
}
}


<!function loaded(){
<!var bgnum= Math.floor(Math.random()*5)
<!var bgurl="images/ins" + bgnum + ".jpg"
<!document.body.background=bgurl

pref=getCookie("mag_glass")
if(!pref){
setCookie("mag_glass","off",10000)
}
if(pref=="on"){
togglemain()
}
}