var isie6 = false;
var isie7 = false;

function changeconh() {
if (isie6) {
var conhe = document.body.clientHeight - 168;
document.getElementById("content").style.height = conhe+'px';
}
/*newbgpos = 120;
var dheight = (isie7) ? document.documentElement.clientHeight : document.body.clientHeight;
dheight -= 170;
if (dheight > 615) {
dheight -= 600;
dheight /= 2;
dheight += 98;
newbgpos = dheight;
}
document.getElementsByTagName("body")[0].style.backgroundPosition = "28px "+newbgpos+"px";
*/
}

window.onresize = changeconh;