function fpssChangeMBlock1(obj)
{
document.getElementById("mainth_cont1").style.display = "block";
document.getElementById("mainth_cont2").style.display = "none";
document.getElementById("mainth_cont3").style.display = "none";
/*
var bm_cur = document.getElementById("bm_cur");
bm_cur.style.backgroundImage = "url(style/bmrk_cur_fon.png";
bm_cur.getElementsByTagName("p")[0].style.color = "#000";
*/
obj.className = 'bm_cur';

var bm2 = document.getElementById("bm2");
bm2.className = 'bm_us';


var bm3 = document.getElementById("bm3");
bm3.className = 'bm_us';
}

function fpssChangeMBlock2(obj)
{
document.getElementById("mainth_cont1").style.display = "none";
document.getElementById("mainth_cont2").style.display = "block";
document.getElementById("mainth_cont3").style.display = "none";

var bm1 = document.getElementById("bm1");
bm1.className = 'bm_us';

/*
var bm2 = document.getElementById("bm2");
bm2.style.backgroundImage = "url(style/bmrk_cur_fon.png";
bm2.getElementsByTagName("p")[0].style.color = "#000";
*/
obj.className = 'bm_cur';

var bm3 = document.getElementById("bm3");
bm3.className = 'bm_us';
}

function fpssChangeMBlock3(obj)
{
document.getElementById("mainth_cont1").style.display = "none";
document.getElementById("mainth_cont2").style.display = "none";
document.getElementById("mainth_cont3").style.display = "block";

var bm1 = document.getElementById("bm1");
bm1.className = 'bm_us';

var bm2 = document.getElementById("bm2");
bm2.className = 'bm_us';
/*
var bm3 = document.getElementById("bm3");
bm3.style.backgroundImage = "url(style/bmrk_cur_fon.png";
bm3.getElementsByTagName("p")[0].style.color = "#000";
*/
obj.className = 'bm_cur';
}