//window.onload  = main;

function randomImage(imageObj){
	
	images = document.getElementsByName("randomPic_"+imageObj.id);
	imageUrl = imageObj;
	imageCount = images.length;

	if(imageCount >0){
		
		imageRandomCount = imageCount;
		int = setInterval("changeImage(imageUrl, images)",1000);
		
	}else{
		
		return false;	
	}
	

	

	
}
function changeImage(imageObj, newImage){

	if(imageRandomCount == 0){
		
		imageRandomCount = imageCount;
		
	}
	imageRandomCount = imageRandomCount - 1;
	
	imageObj.src = newImage[imageRandomCount].value;
		
}
function randomImageOut(){
	
	window.clearInterval(int);
	
}
function changePreviewImage(imageOgj){
	
	previewImage = document.getElementById("imagePreview");
	if(imageOgj.id != "imagePreview_thumb"){
		
		var newPreviewImage = imageOgj.src.substring(0,imageOgj.src.lastIndexOf("_s"))+".jpg";
		
	}else{
		
		var newPreviewImage = imageOgj.src;	
	}
	
	previewImage.src = newPreviewImage;
	
}