// JavaScript Document

	//pre-cache rotating images
	//change number of items in array depending on number of images to display
	//names of images all have to be in format adN.gif where N is the count in the rotation - change to jpg if needed
	image_arr=new Array(5)
	for (var i=0; i< image_arr.length; i++) {
		image_arr[i]=new Image(250,150)
		image_arr[i].src="images/ad"+(i+1)+".gif"
	}
	//create array of links for clickable ads
	link_arr=new Array(4)
	link_arr[0]='advertising.php'
	link_arr[1]='advertising.php'
	link_arr[2]='http://www.c21nm.com'
	link_arr[3]='http://www.prosuzy.com'
	link_arr[4]='http://www.coachsappho.com'
	

	
	function checkTimer() {
		var newIndex=0
		var gifName=document.rotator.src
		var nameLoc=gifName.indexOf("ad")
		var gifName_stripped=gifName.substring(nameLoc,gifName.length)
		var dotLoc=gifName_stripped.indexOf(".")
		var gifIndex=gifName_stripped.substring(2,dotLoc)
		
		if (gifIndex < image_arr.length) {
			newIndex=parseInt(gifIndex) //+1
		}
		
		//get index of ad_link link (needed in case other links are added to page
		for (var i=0; i< document.links.length; i++) {
			if (document.links[i].name=='ad_link') {
				var link_index=i				   
			}
		}
		
		document.rotator.src=image_arr[newIndex].src
		document.links[link_index].href=link_arr[newIndex]

		//5000 ms=5 seconds -- change as needed
		var timeoutID=setTimeout("checkTimer()", 5000)
	}