screen_width=window.innerWidth;
NN = (document.layers) ? true:false;

function arrow_on (number)
	{
	document[number].src="/_images/arrow.gif";
	}
function arrow_off(number)
	{
	document[number].src="/_images/transparent.gif"
	}

button_main_off=new Image(107,21);
button_main_off.src="/_images/button_main.gif";
button_main_on=new Image(107,21);
button_main_on.src="/_images/button_main_on.gif";

button_about_off=new Image(73,21);
button_about_off.src="/_images/button_about.gif";
button_about_on=new Image(73,21);
button_about_on.src="/_images/button_about_on.gif";

button_job_off=new Image(95,21);
button_job_off.src="/_images/button_job.gif";
button_job_on=new Image(95,21);
button_job_on.src="/_images/button_job_on.gif";

button_personal_off=new Image(83,21);
button_personal_off.src="/_images/button_personal.gif";
button_personal_on=new Image(83,21);
button_personal_on.src="/_images/button_personal_on.gif";

button_russia_off=new Image(74,21);
button_russia_off.src="/_images/button_russia.gif";
button_russia_on=new Image(74,21);
button_russia_on.src="/_images/button_russia_on.gif";

button_contacts_off=new Image(60,22);
button_contacts_off.src="/_images/button_contacts.gif";
button_contacts_on=new Image(60,22);
button_contacts_on.src="/_images/button_contacts_on.gif";


button_tr_off=new Image(72,22);
button_tr_off.src="/_images/button_tr.gif";
button_tr_on=new Image(72,22);
button_tr_on.src="/_images/button_tr_on.gif";


//arrow_off=new Image (9,10);
//arrow_off.src="/_images/transparent.gif"
//arrow_on=new Image (9,10);
//arrow_on.src="/_images/arrow.gif"


	function lightOn(imgName)
	{
		document[imgName].src=eval(imgName+"on.src")
	}

	function lightOff(imgName)
	{
		document[imgName].src=eval(imgName+"off.src")
	}


	function open_window(page)
	{
	window.open(page,'_new','width=600,height=400,resizable=no,status=no,menubar=no,toolbars=no,scrollbars=no')
	}