function F(k) {
for(id=1;id<15;id++){
        document.getElementById('tab-'+id).className="hiddenz";
        document.getElementById('tab-'+k).className="visiblez";
        document.getElementById('tabhead-'+id).className="tabhead";
        document.getElementById('tabhead-'+k).className="tabhead-open"; }
};

function aha()
	{
	if (form.name.value=='') {document.getElementById('showerror').innerHTML='<span style=color:red;>Вы не ввели имя.</span>'; return false;}
	else if (form.date.value=='') {document.getElementById('showerror').innerHTML='<span style=color:red;>Укажите, пожалуйста, даты поездки.</span>'; return false;}
	else if (form.email.value=='') {document.getElementById('showerror').innerHTML='<span style=color:red;>Вы не ввели адрес электронной почты.</span>'; return false;}
	else if (form.text.value=='') {document.getElementById('showerror').innerHTML='<span style=color:red;>Не забудьте отзыв.</span>'; return false;}
	else {form.submit()}
};

function accomodation(a,n,m) {
	if (a.selectedIndex==0)
		{
		document.getElementById('family').className="visiblez";
		document.getElementById('residence').className="hiddenz";
		document.getElementById('changingaccom').innerHTML="проживание в принимающей семье (комната на одного, завтрак, ужин),";
		for(id=0;id<1000;id++){
		document.getElementById('a'+id).innerHTML=data['a'+id];
		document.getElementById('b'+id).innerHTML=data['b'+id];
		document.getElementById('c'+id).innerHTML=data['c'+id];
		document.getElementById('d'+id).innerHTML=data['d'+id];
		document.getElementById('e'+id).innerHTML=data['e'+id];
		document.getElementById('f'+id).innerHTML=data['f'+id];
		document.getElementById('g'+id).innerHTML=data['g'+id];
		document.getElementById('h'+id).innerHTML=data['h'+id];
		document.getElementById('i'+id).innerHTML=data['i'+id];
		if (document.getElementById('aa'+id)==true) {document.getElementById('aa'+id).innerHTML=data['aa'+id];};
};
		}
	else
		{
		document.getElementById('residence').className="visiblez";
		document.getElementById('family').className="hiddenz";
		document.getElementById('changingaccom').innerHTML="проживание в резиденции,";
		for(id=0;id<1000;id++){
		document.getElementById('a'+id).innerHTML=Number(data['a'+id])+n*2-m*2;
		document.getElementById('b'+id).innerHTML=Number(data['b'+id])+n*3-m*3;
		document.getElementById('c'+id).innerHTML=Number(data['c'+id])+n*4-m*4;
		document.getElementById('d'+id).innerHTML=Number(data['d'+id])+n*6-m*6;
		document.getElementById('e'+id).innerHTML=Number(data['e'+id])+n*8-m*8;
		document.getElementById('f'+id).innerHTML=Number(data['f'+id])+n*10-m*10;
		document.getElementById('g'+id).innerHTML=Number(data['g'+id])+n*24-m*24;
		document.getElementById('h'+id).innerHTML=Number(data['h'+id])+n*36-m*36;
		document.getElementById('i'+id).innerHTML=Number(data['i'+id])+n*12-m*12;
		if (document.getElementById('aa'+id)==true) {document.getElementById('aa'+id).innerHTML=Number(data['aa'+id])+n*20-m*20;};
};
		}
};

function accomodationec(a,n,m,ba,ec,ru) {
he = " и еще <b style='color:red;'>";
khe = " руб.</b> за каждую неделю проживания";
	if (a.selectedIndex==0)
		{
		document.getElementById('familyec').className="visiblez";
		document.getElementById('residenceec').className="hiddenz";
		document.getElementById('changingaccomec').innerHTML="проживание в принимающей семье (комната на одного, завтрак, ужин),";
		document.getElementById('moreeconomy').innerHTML="";
		for(id=0;id<1000;id++){
		document.getElementById('a'+id).innerHTML=data['a'+id]-ba+ec;
		document.getElementById('b'+id).innerHTML=data['b'+id]-ba+ec;
		document.getElementById('c'+id).innerHTML=data['c'+id]-ba+ec;
		document.getElementById('d'+id).innerHTML=data['d'+id]-ba+ec;
		document.getElementById('e'+id).innerHTML=data['e'+id]-ba+ec;
		document.getElementById('f'+id).innerHTML=data['f'+id]-ba+ec;
		document.getElementById('g'+id).innerHTML=data['g'+id]-ba+ec;
		document.getElementById('h'+id).innerHTML=data['h'+id]-ba+ec;
		document.getElementById('i'+id).innerHTML=data['i'+id]-ba+ec;
		if (document.getElementById('aa'+id)==true) {document.getElementById('aa'+id).innerHTML=data['aa'+id];};
};
		}
	else
		{
		document.getElementById('residenceec').className="visiblez";
		document.getElementById('familyec').className="hiddenz";
		document.getElementById('changingaccomec').innerHTML="проживание в студенческой квартире,";
		document.getElementById('moreeconomy').innerHTML=he + Math.round((m-n)*ru) + khe;
		for(id=0;id<1000;id++){
		document.getElementById('a'+id).innerHTML=Number(data['a'+id])-ba+ec+n*2-m*2;
		document.getElementById('b'+id).innerHTML=Number(data['b'+id])-ba+ec+n*3-m*3;
		document.getElementById('c'+id).innerHTML=Number(data['c'+id])-ba+ec+n*4-m*4;
		document.getElementById('d'+id).innerHTML=Number(data['d'+id])-ba+ec+n*6-m*6;
		document.getElementById('e'+id).innerHTML=Number(data['e'+id])-ba+ec+n*8-m*8;
		document.getElementById('f'+id).innerHTML=Number(data['f'+id])-ba+ec+n*10-m*10;
		document.getElementById('g'+id).innerHTML=Number(data['g'+id])-ba+ec+n*24-m*24;
		document.getElementById('h'+id).innerHTML=Number(data['h'+id])-ba+ec+n*36-m*36;
		document.getElementById('i'+id).innerHTML=Number(data['i'+id])-ba+ec+n*12-m*12;
		if (document.getElementById('aa'+id)==true) {document.getElementById('aa'+id).innerHTML=Number(data['aa'+id])+n*20-m*20;};
};
		}
};

function multiplicate(k)
{
	for(id=0;id<1000;id++){
	document.getElementById('ab'+id).innerHTML=Math.round(ju['ab'+id]*k); };
};

function multiplicatefamily(k)
{
	for(id=0;id<1000;id++){
	document.getElementById('a'+id).innerHTML=Math.round(data['a'+id]*k);
	document.getElementById('b'+id).innerHTML=Math.round(data['b'+id]*k);
	document.getElementById('c'+id).innerHTML=Math.round(data['c'+id]*k);
	document.getElementById('d'+id).innerHTML=Math.round(data['d'+id]*k);
	document.getElementById('e'+id).innerHTML=Math.round(data['e'+id]*k);
	document.getElementById('f'+id).innerHTML=Math.round(data['f'+id]*k);
	document.getElementById('g'+id).innerHTML=Math.round(data['g'+id]*k);
	document.getElementById('h'+id).innerHTML=Math.round(data['h'+id]*k);
	document.getElementById('i'+id).innerHTML=Math.round(data['i'+id]*k); };
};

function multiplicatefamilyec(k,ba,ec)
{
	for(id=0;id<1000;id++){
	document.getElementById('a'+id).innerHTML=Math.round((Number(data['a'+id])-ba+ec)*k);
	document.getElementById('b'+id).innerHTML=Math.round((Number(data['b'+id])-ba+ec)*k);
	document.getElementById('c'+id).innerHTML=Math.round((Number(data['c'+id])-ba+ec)*k);
	document.getElementById('d'+id).innerHTML=Math.round((Number(data['d'+id])-ba+ec)*k);
	document.getElementById('e'+id).innerHTML=Math.round((Number(data['e'+id])-ba+ec)*k);
	document.getElementById('f'+id).innerHTML=Math.round((Number(data['f'+id])-ba+ec)*k);
	document.getElementById('g'+id).innerHTML=Math.round((Number(data['g'+id])-ba+ec)*k);
	document.getElementById('h'+id).innerHTML=Math.round((Number(data['h'+id])-ba+ec)*k);
	document.getElementById('i'+id).innerHTML=Math.round((Number(data['i'+id])-ba+ec)*k); };
};

function multiplicateresidence(k,n,m)
{
	for(id=0;id<1000;id++){
	document.getElementById('a'+id).innerHTML=Math.round((Number(data['a'+id])+n*2-m*2)*k);
	document.getElementById('b'+id).innerHTML=Math.round((Number(data['b'+id])+n*3-m*3)*k);
	document.getElementById('c'+id).innerHTML=Math.round((Number(data['c'+id])+n*4-m*4)*k);
	document.getElementById('d'+id).innerHTML=Math.round((Number(data['d'+id])+n*6-m*6)*k);
	document.getElementById('e'+id).innerHTML=Math.round((Number(data['e'+id])+n*8-m*8)*k);
	document.getElementById('f'+id).innerHTML=Math.round((Number(data['f'+id])+n*10-m*10)*k);
	document.getElementById('g'+id).innerHTML=Math.round((Number(data['g'+id])+n*24-m*24)*k);
	document.getElementById('h'+id).innerHTML=Math.round((Number(data['h'+id])+n*36-m*36)*k);
	document.getElementById('i'+id).innerHTML=Math.round((Number(data['i'+id])+n*12-m*12)*k); };
};

function multiplicateresidenceec(k,n,m,ba,ec)
{
	for(id=0;id<1000;id++){
	document.getElementById('a'+id).innerHTML=Math.round((Number(data['a'+id])+n*2-m*2-ba+ec)*k);
	document.getElementById('b'+id).innerHTML=Math.round((Number(data['b'+id])+n*3-m*3-ba+ec)*k);
	document.getElementById('c'+id).innerHTML=Math.round((Number(data['c'+id])+n*4-m*4-ba+ec)*k);
	document.getElementById('d'+id).innerHTML=Math.round((Number(data['d'+id])+n*6-m*6-ba+ec)*k);
	document.getElementById('e'+id).innerHTML=Math.round((Number(data['e'+id])+n*8-m*8-ba+ec)*k);
	document.getElementById('f'+id).innerHTML=Math.round((Number(data['f'+id])+n*10-m*10-ba+ec)*k);
	document.getElementById('g'+id).innerHTML=Math.round((Number(data['g'+id])+n*24-m*24-ba+ec)*k);
	document.getElementById('h'+id).innerHTML=Math.round((Number(data['h'+id])+n*36-m*36-ba+ec)*k);
	document.getElementById('i'+id).innerHTML=Math.round((Number(data['i'+id])+n*12-m*12-ba+ec)*k); };
};

function dates(m) {
for(id=1;id<10;id++){
document.getElementById(id).className="hiddenz";
document.getElementById(m).className="visiblez"; };
};

function schools(n) {
for(id=1;id<10;id++){
document.getElementById('sc'+id).className="hiddenz";
document.getElementById(n).className="visiblez"; };
};

function packa(ba,ec)
{
	document.getElementById('economical').className="visiblez";
	document.getElementById('basic').className="hiddenz";

	for(id=0;id<1000;id++){
	document.getElementById('a'+id).innerHTML=data['a'+id]-ba+ec;
	document.getElementById('b'+id).innerHTML=data['b'+id]-ba+ec;
	document.getElementById('c'+id).innerHTML=data['c'+id]-ba+ec;
	document.getElementById('d'+id).innerHTML=data['d'+id]-ba+ec;
	document.getElementById('e'+id).innerHTML=data['e'+id]-ba+ec;
	document.getElementById('f'+id).innerHTML=data['f'+id]-ba+ec;
	document.getElementById('g'+id).innerHTML=data['g'+id]-ba+ec;
	document.getElementById('h'+id).innerHTML=data['h'+id]-ba+ec;
	document.getElementById('i'+id).innerHTML=data['i'+id]-ba+ec; };
};

function packb(ec,ba)
{
	document.getElementById('economical').className="hiddenz";
	document.getElementById('basic').className="visiblez";

	for(id=0;id<1000;id++){
	document.getElementById('a'+id).innerHTML=data['a'+id];
	document.getElementById('b'+id).innerHTML=data['b'+id];
	document.getElementById('c'+id).innerHTML=data['c'+id];
	document.getElementById('d'+id).innerHTML=data['d'+id];
	document.getElementById('e'+id).innerHTML=data['e'+id];
	document.getElementById('f'+id).innerHTML=data['f'+id];
	document.getElementById('g'+id).innerHTML=data['g'+id];
	document.getElementById('h'+id).innerHTML=data['h'+id];
	document.getElementById('i'+id).innerHTML=data['i'+id]; };
};