var image = new Array();
	var dsc = new Array();	
	var title = new Array();
	var url = new Array();

	var curr_image=0;
	var image_count=0;

function showImage(image_no)
	{
		if(image_no<0) image_no=0;
		if(image_no>=image_count) image_no=image_count-1;
		document.getElementById('rollimg').src=image[image_no].src;
		if(title[image_no]!="") document.getElementById('title').innerHTML=title[image_no];
		if(dsc[image_no]!="") document.getElementById('dsc').innerHTML=dsc[image_no].replace("\\n","<br>");
		if(url[image_no]!="") document.getElementById('img_url').href=url[image_no];
		if(url[image_no]!="") document.getElementById('title_url').href=url[image_no];
		curr_image=image_no;
	}
	
	
function AddGalleryItem(_image,_title,_dsc,_url)
{
		 image[image_count] = new Image;
		 image[image_count].src = _image;
		 dsc[image_count]=_dsc;
 		 title[image_count]=_title;
 		 url[image_count]=_url;
 		 if(url[image_count]=="") url[image_count]="javascript:void(0);";
 		 image_count++;
}