var counter = 0;
		showNextImage();

		function showNextImage() {
			var img = document.getElementById('imgPreview');
			var div = document.getElementById('divImage');
			if (div != null && img != null) {
				if (counter == 0) {
					blendimage('divImage', 'imgPreview', '_repository/images/html/header/slike/1.gif', 2000);
					counter = 1;
				}
				else if (counter == 1) {
					blendimage('divImage', 'imgPreview', '_repository/images/html/header/slike/2.gif', 2000);
					counter = 2;
				}
				else if (counter == 2) {
					blendimage('divImage', 'imgPreview', '_repository/images/html/header/slike/3.gif', 2000);
					counter = 3;
				}
				
				else if (counter == 3) {
					blendimage('divImage', 'imgPreview', '_repository/images/html/header/slike/4.gif', 2000);
					counter = 0;
				}
			}
			window.setTimeout(showNextImage, 6000);
		}

		function opacity(id, opacStart, opacEnd, millisec) {
			//speed for each frame
			var speed = Math.round(millisec / 100);
			var timer = 0;

			//determine the direction for the blending, if start and end are the same nothing happens
			if (opacStart > opacEnd) {
				for (i = opacStart; i >= opacEnd; i--) {
					setTimeout("changeOpac(" + i + ",'" + id + "')", (timer * speed));
					timer++;
				}
			} else if (opacStart < opacEnd) {
				for (i = opacStart; i <= opacEnd; i++) {
					setTimeout("changeOpac(" + i + ",'" + id + "')", (timer * speed));
					timer++;
				}
			}
		}

		//change the opacity for different browsers
		function changeOpac(opacity, id) {
			var object = document.getElementById(id).style;
			object.opacity = (opacity / 100);
			object.MozOpacity = (opacity / 100);
			object.KhtmlOpacity = (opacity / 100);
			object.filter = "alpha(opacity=" + opacity + ")";
		}

		function shiftOpacity(id, millisec) {
			//if an element is invisible, make it visible, else make it ivisible
			if (document.getElementById(id).style.opacity == 0) {
				opacity(id, 0, 100, millisec);
			} else {
				opacity(id, 100, 0, millisec);
			}
		}

		function blendimage(divid, imageid, imagefile, millisec) {
			var speed = Math.round(millisec / 100);
			var timer = 0;

			//set the current image as background
			document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";

			//make image transparent
			changeOpac(0, imageid);

			//make new image
			document.getElementById(imageid).src = imagefile;

			//fade in image
			for (i = 0; i <= 100; i++) {
				setTimeout("changeOpac(" + i + ",'" + imageid + "')", (timer * speed));
				timer++;
			}
		}

		function currentOpac(id, opacEnd, millisec) {
			//standard opacity is 100
			var currentOpac = 100;

			//if the element has an opacity set, get it
			if (document.getElementById(id).style.opacity < 100) {
				currentOpac = document.getElementById(id).style.opacity * 100;
			}

			//call for the function that changes the opacity
			opacity(id, currentOpac, opacEnd, millisec)
		}
		
		function ChangeElementClass(elementId, className)
		{
			document.getElementById(elementId).className = className;
		}