open page to a specific slide from another page

[marilynn.fowler]

I have a slideshow on the "Projects" page. The javascript is external.
There's a link on the homepage that when clicked needs to open the Projects page with the appropriate slide loaded. How do I do that?

Here's the code I have for the slideshow:

var prev = document.getElementById('prev');
var next = document.getElementById('next');
var current = 0;

function prevPic() {
	clearInterval(interval);

	if(current > 0) {
		current--;
		
		if(current == 0) {
			document.getElementById('next').src = "images/right_arrow.jpg";
			document.getElementById('prev').src = "images/left_arrow_off.jpg";
		} else {
			document.getElementById('next').src = "images/right_arrow.jpg";
			document.getElementById('prev').src = "images/left_arrow.jpg";			
		}
		update();
	}		
}

function nextPic() {
	clearInterval(interval);

	if(current <  slides.length - 1) {
		current++;
		
		if(current == slides.length - 1) {
			document.getElementById('next').src = "images/right_arrow_off.jpg";
			document.getElementById('prev').src = "images/left_arrow.jpg";
		} else {
			document.getElementById('next').src = "images/right_arrow.jpg";
			document.getElementById('prev').src = "images/left_arrow.jpg";			
		}
		update();
	}
}

function update() {
	var pic = slides[current];
	document.getElementById('project_title').innerHTML = pic.title;
	document.getElementById('project_image').src = "images/slides/" + pic.image;
	document.getElementById('project_location').innerHTML = "<span>Location:</span> " + pic.location;
	document.getElementById('project_operation').innerHTML = "<span>Commercial Operation:</span> " + pic.commercial_operation;
	document.getElementById('counter').innerHTML = (current + 1) + " of " + slides.length;
	
	if(pic.link) {
		document.getElementById('project_link').style.display = "block";
		document.getElementById('project_href').href = pic.link;
	} else {
		document.getElementById('project_link').style.display = "none";		
	}
}

//preload slides
var images = [];

for(i in slides) {
	var img = new Image();
	img.src = "images/slides/" + slides[i].image;
	images.push(img);
}

[marilynn.fowler]

In answering a cookie question, Logic Ali gave me the answer to this question. Hurrah.

http://www.codingforums.com/showthread.php?t=209103