function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
	   anchor.target = "_blank";	
 	}
}
window.onload = externalLinks; 

// <a href="http://www.abcde.com" onclick="window.open(this.href);return false;">abcde</a>

$(function(){
	$("#bottombox li a").hover(
		function(){
			$(this).animate({"top": "-=38px"},"normal");;
		},
		function(){
			$(this).animate({"top": "+=38px"},"normal");
		}
	);

	// Function that return a number between 0 and "nums - 1"
	function getRandom(nums){
		var ranNum= Math.round(Math.random()*nums);
		return ranNum;
	}
	// Tells us how many images we have available.
	var numberOfImages    = 3;
	var randomNumber        = getRandom(numberOfImages);
	// Create an array to hold the names of all images.
	var imagepath = 'images/SLbanner/';
	var image = new Array(numberOfImages);
	image[0]=imagepath+"L_BN_urbano01.jpg";
	image[1]=imagepath+"L_BN_urbano02.jpg";
	image[2]=imagepath+"L_BN_urbano03.jpg";
	// Write the img tag with a random image name.
	$("#bottombox li:eq(0)").find('img').attr('src',image[randomNumber]);

	var image2 = new Array(numberOfImages);
	image2[0]=imagepath+"L_BN_Tree01.jpg";
	image2[1]=imagepath+"L_BN_Tree02.jpg";
	image2[2]=imagepath+"L_BN_Tree03.jpg"
	$("#bottombox li:eq(1)").find('img').attr('src',image2[randomNumber]);

	var image3 = new Array(numberOfImages);
	image3[0]=imagepath+"L_BN_ivy01.jpg";
	image3[1]=imagepath+"L_BN_ivy02.jpg";
	image3[2]=imagepath+"L_BN_ivy03.jpg"; 

	$("#bottombox li:eq(2)").find('img').attr('src',image3[randomNumber]);
});