function BrowserHeight()
{
if (window.innerHeight) return window.innerHeight;
else if (document.body && document.body.offsetHeight) return document.body.offsetHeight;
else if (document.documentElement.clientHeight) return document.documentElement.clientHeight;
else return 0;
}

function Resolution()
{
if (window.innerHeight) x = window.innerHeight;
else if (document.body && document.body.offsetHeight) x = document.body.offsetHeight;
else if (document.documentElement.clientHeight) x = document.documentElement.clientHeight;
else x = 600;
}

function Choice()
{
if (x < 650) y = 1;
else if (x >= 650 && x <= 800) y = 2;
else if (x > 800) y = 3;
else y = 1;
}

function Change1(z)
{
if (y == 1) window.location = "lowres/"+z;
else if (y == 2) window.location = "midres/"+z;
else if (y == 3) window.location = "highres/"+z;
else ""
}

function Change2(z)
{
if (y == 1) window.location = "lowres/"+z;
else if (y == 2) window.location = "midres/"+z;
else if (y == 3) window.location = "highres/"+z;
else ""
}

function ResolutionSwitch(z)
{
BrowserHeight();
Resolution();
Choice();
Change1(z);
}

function ResolutionCheck(z)
{
BrowserHeight();
Resolution();
Choice();
Change2(z);
}