function ButtonChange(name, namesrc){document.images[name].src = namesrc}

var opened=false;

function Open_Popup(pagesrc){
features="top=100,left=200,width=530,height=470,toolbar=no,menubar=no,location=no,directories=no,scrollbars=yes,resizable=yes";
if ((!opened)||(NewWin.closed)){
opened=true;
NewWin=window.open(pagesrc,"NewWindow",features);
NewWin.focus();
}
else{
	if ((opened)||(!NewWin.closed)){
	NewWin.location=pagesrc;
	NewWin.focus();
	}
}
}

vasya = new Array;
vasya[0]="eq.php";
vasya[1]="eq_met.php";
vasya[2]="eq_str.php";

vasya_en = new Array;
vasya_en[0]="eq_en.php";
vasya_en[1]="eq_met_en.php";
vasya_en[2]="eq_str_en.php";

petya = new Array;
petya[0]="eq_met.php";
petya[1]="eq.php";
petya[2]="eq_str.php";

petya_en = new Array;
petya_en[0]="eq_met_en.php";
petya_en[1]="eq_en.php";
petya_en[2]="eq_str_en.php";

kostya = new Array;
kostya[0]="eq_str.php";
kostya[1]="eq.php";
kostya[2]="eq_met.php";

kostya_en = new Array;
kostya_en[0]="eq_str_en.php";
kostya_en[1]="eq_en.php";
kostya_en[2]="eq_met_en.php";

k = new Array;
k[0]="eq_arm.php";
k[1]="eq_arm2.php";

i = new Array;
i[0]="eq_arm2.php";
i[1]="eq_arm.php";

masha = new Array;
masha[0]="lenta3.php";
masha[1]="lenta3_1.php";
masha[2]="lenta3_2.php";

masha_en = new Array;
masha_en[0]="lenta3_en.php";
masha_en[1]="lenta3_1_en.php";
masha_en[2]="lenta3_2_en.php";

sasha_en = new Array;
sasha_en[0]="lenta3_1_en.php";
sasha_en[1]="lenta3_en.php";
sasha_en[2]="lenta3_2_en.php";