function dispPicsOnId(id)
{
	var picExtention = new Array(
	/.jpg/i , /.jpeg/i , /.bmp/i , /.gif/i , /.ico/i , /.png/i
	);
	
	var links = document.getElementsByTagName('a');
	for(var i=0; i<links.length; i++)
	{
		var link = links[i].href;
		if( isInArray( getExtention(link), picExtention) )
		{
			document.getElementsByTagName('a')[i].href = "javascript:changePic('"+id+"', '"+link+"')";
			document.getElementsByTagName('a')[i].target = "_self";
		}
	}
}

function changePic(id, url)
{
	document.getElementById(id).src = url;
}

function isInArray(ele, arr)
{
	for(var i=0; i<arr.length; i++)
	{
		if( ele.search(arr[i]) != -1 ) {
			return true; }
	}
	return false;
}

function getExtention(str)
{
	if( str.lastIndexOf('.') == -1 ) {
		return -1; }
	return str.substring( str.lastIndexOf('.') );
}