function get_image(case_num, num, sorc)
{
	// if ie or mozilla
	if(document.getElementById)
	{
		document.getElementById('case_picture').src = sorc;
		for(var i = 1; i <= 4; i++ )
		{
			document.getElementById('case_number_' + i).src = "/images/case_number_" + i + "_off.jpg";
		}
		document.getElementById('case_number_' + num).src = "/images/case_number_" + num + "_on.jpg";	
	}
	// if NS
	else
	{
		for(var i = 0; i < document.images.length; i++)
		{
			if(typeof document.images[i].src != 'undefined')
			{
				if(document.images[i].src.indexOf("case") != -1)
				{
					if(document.images[i].src.indexOf("case_number_1") != -1)
						document.images[i].src = "/images/case_number_1_off.jpg";			
					else if(document.images[i].src.indexOf("case_number_2") != -1)
						document.images[i].src = "/images/case_number_2_off.jpg";							
					else if(document.images[i].src.indexOf("case_number_3") != -1)
						document.images[i].src = "/images/case_number_3_off.jpg";						
					else if(document.images[i].src.indexOf("case_number_4") != -1)
						document.images[i].src = "/images/case_number_4_off.jpg";		
					else
					{
						if((document.images[i].src.indexOf("_0") == -1) && (document.images[i].src.indexOf("_left") == -1))
							document.images[i].src = sorc;
					}						
					
					if(document.images[i].src.indexOf("case_number_" + num) != -1)
						document.images[i].src = "/images/case_number_" + num + "_on.jpg";					
				}							
			}
		}		
	}
}



function randomFrontpageImage()
{
	var randomnumber=Math.floor(Math.random()*3) + 1;
	// if ie or mozilla
	if(document.getElementById)
	{
		document.getElementById('frontpageImage').src = "images/frontpage_0" + randomnumber + ".jpg";
	}
	// if NS
	else
	{
		for(var i = 0; i < document.images.length; i++)
		{
			if(typeof document.images[i].src != 'undefined')
			{
				if	((document.images[i].src.indexOf("frontpage_01.jpg") != -1) ||
					(document.images[i].src.indexOf("frontpage_02.jpg") != -1) 	||
					(document.images[i].src.indexOf("frontpage_03.jpg") != -1))
				{					
					document.images[i].src = "images/frontpage_0" + randomnumber + ".jpg";
				}						
			}
		}		
	}
}