var hTimer = null;
var hTimeout = 5000;
var oldRnd = 1;

preloadHeaders = function ( ) {
	for ( var i = 1; i < 8; i++ ) {
		var img = new Image;
		img.src = '/include/images/head/text'+i+'.png';
		var img1 = new Image;
		img1.src = '/include/images/head/bg'+i+'.jpg';
	}
}
preloadHeaders();

headerTextRandom = function ( ) {
	var rand = 0;
	do {
		var rand = Math.ceil((Math.random() * 100) % 7);
	} while ( rand == oldRnd );
	
	var txt_link = document.getElementById('link_on_main');
	var img_link = document.getElementById('link_on_main_img');
	if (rand == 1) {txt_link.href = '/services/more/?id=11'; img_link.href = '/services/more/?id=11';}
	if (rand == 2) {txt_link.href = '/services/more/?id=15'; img_link.href = '/services/more/?id=15';}
	if (rand == 3) {txt_link.href = '/services/more/?id=12'; img_link.href = '/services/more/?id=12';}
	if (rand == 4) {txt_link.href = '/services/more/?id=16'; img_link.href = '/services/more/?id=16';}
	if (rand == 5) {txt_link.href = '/services/more/?id=16'; img_link.href = '/services/more/?id=16';}
	if (rand == 6) {txt_link.href = '/services/more/?id=7'; img_link.href = '/services/more/?id=7';}
	if (rand == 7) {txt_link.href = '/services/more/?id=10'; img_link.href = '/services/more/?id=10';}
	
	var img = new Image;
	img.src = '/include/images/head/text'+rand+'.png';
	var browser=navigator.appName;
	var b_version=navigator.appVersion;
	var version=parseFloat(b_version);
	if ((browser=="Microsoft Internet Explorer") && (version < 7))
	{
		document.getElementById('bgTextImage').width = img.width;
		document.getElementById('bgTextImage').height = img.height;
	}

	document.getElementById('bgTextImage').src = img.src;

	var img1 = new Image;
	img1.src = '/include/images/head/bg'+rand+'.jpg';
	var bg = document.getElementById('bg'+oldRnd);
	bg.setAttribute ( 'id', 'bg'+rand );

	oldRnd = rand;
	hTimer = setTimeout ( 'headerTextRandom()', hTimeout );
}

window.onload = headerTextRandom;