// Screen resolution detection and th euse of the according CSS file
if (screen.width==1024||screen.height==768)
	document.write('<link rel="stylesheet" href="main.css" /><link rel="stylesheet" href="small_res.css" />');
else if (screen.height<768)
	document.write('<link rel="stylesheet" href="main.css" /><link rel="stylesheet" href="small_res.css" />');
else
	document.write('<link rel="stylesheet" href="main.css">');
	

// DIV show and hide script
function HideContent(d) {
	if(d.length < 1) { return; }
	document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
	if(d.length < 1) { return; }
	document.getElementById(d).style.display = "block";
}
function ReverseContentDisplay(d) {
	if(d.length < 1) { return; }
	if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
	else { document.getElementById(d).style.display = "none"; }
}


//  DIV background changer
MyImages=new Array();
MyImages[0]='images/main_image_01.jpg';
MyImages[1]='images/main_image_02.jpg';
MyImages[2]='images/main_image_03.jpg';
MyImages[3]='images/main_image_04.jpg';
MyImages[4]='images/main_image_05.jpg';
MyImages[5]='images/main_image_06.jpg';
MyImages[6]='images/main_image_07.jpg';
MyImages[7]='images/main_image_08.jpg';
MyImages[8]='images/main_image_09.jpg';
MyImages[9]='images/main_image_10.jpg';

imagesPreloaded = new Array();

for (var i = 0; i < MyImages.length ; i++) {
	imagesPreloaded[i] = new Image(860,406);
	imagesPreloaded[i].src=MyImages[i];
}

var currentIndx=0;
function Nexter(){
	if (currentIndx<imagesPreloaded.length-1){
		currentIndx=currentIndx+1;
		document.getElementById('center').style.backgroundImage='url('+imagesPreloaded[currentIndx].src+')';
	}
	else {
		currentIndx=0;
		document.getElementById('center').style.backgroundImage='url('+imagesPreloaded[currentIndx].src+')';
	}
}

function Backer(){
	if (currentIndx>0){
		currentIndx=currentIndx-1;
		document.getElementById('center').style.backgroundImage='url('+imagesPreloaded[currentIndx].src+')';
	}
	else {
		currentIndx=9
		document.getElementById('center').style.backgroundImage='url('+imagesPreloaded[currentIndx].src+')';
	}
}