if(screen.width == 1024)
{parent.location.href='1024/index1.html';}

else

if(screen.width >= 1153)
{parent.location.href='1024/index2.html';}

else

if(screen.width == 800)
{parent.location.href='800/index3.html';}


else

if(screen.width == 1152)
{parent.location.href='1024/index4.html';}