var ImgLength ;
var ImgNum ;

//Time delay between Slides in milliseconds
var delay = 5000;

var lock = false;
var run;
function chgImg(direction)
{
	if (document.images)
	{
		ImgNum = ImgNum + direction;
		if (ImgNum > ImgLength)
		{
			ImgNum = 0;
		}
		
		if (ImgNum < 0)
		{
			ImgNum = ImgLength;
		}
		document.getElementById('banner').style.backgroundImage = 'url('+NewImg[ImgNum]+')';
		document.getElementById('banner').style.backgroundRepeat = 'repeat-none';
		document.getElementById('header_text').innerHTML=Text[ImgNum];
	}
}



function auto() {
	chgImg(1);
	if (lock == true)
	{
		lock = false;
		window.clearInterval(run);
	}
	
	else if (lock == false)
	{
		lock = true;
		run = setInterval("chgImg(1)", delay);
	}
}





function intilizeImages(imgArr)
{
	for (i=0; i < imgArr.length; i++) 
	{
		var preload = new Image();
		preload.src = imgArr[i];
	}
	
	ImgLength = NewImg.length - 1;
	
	ImgNum = 0;
}