<!--

/*
Copyright ? The Regents of the University of Michigan,
College of Literature, Science, and the Arts 2002-2003, All Rights Reserved.
Site: Institute for the Humanities
http://www.lsa.umich.edu/humin
Script: Slide Show
Version: 2.0
Updated: 09/18/03
Authors: Frank Y.
*/


////////////////////////////////////////////////
//* Default Slide and Caption for Slide Show *//
////////////////////////////////////////////////

function defaultSlide() {

arg = eval(window.document.frmPage.hdnCurrentSlide.value) + 1;
arg1 = window.document.frmPage.hdnCurrentSlide.value;

eval("window.document.slidephoto.src=newPhoto[" + arg1 + "]");
eval("window.document.slidephoto.alt=newAlt[" + arg1 + "]");

// set divs

  if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)=="4") {
    eval("document.layers['diag'].visibility='show'");
		eval("document.layers['prev'].visibility='show'");
		eval("document.layers['next'].visibility='show'");

		eval("document.layers['diagoff'].visibility='hidden'");
		eval("document.layers['prevoff'].visibility='hidden'");
		eval("document.layers['nextoff'].visibility='hidden'");
  }
  else if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)!="4") {
    eval("window.document.getElementById('diag').style.display=''");
		eval("window.document.getElementById('prev').style.display=''");
		eval("window.document.getElementById('next').style.display=''");
  }
  else {
    eval("window.document.all.diag.style.display=''");
		eval("window.document.all.prev.style.display=''");
		eval("window.document.all.next.style.display=''");
  }

}


/////////////////////
//* Prev/Next Nav *//
/////////////////////

function prevnextNav(newPhotoNbr) {
//alert("prevnextNav block")

var newPhotoNbr;

//oldPhotoNbr = eval(window.document.frmPage.hdnCurrentSlide.value);
//navNbr = newPhotoNbr;

// set images for nav
  if (newPhotoNbr < 1) {

		if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)=="4") {
		  eval("document.layers['diag'].visibility='hidden'");
		  eval("document.layers['prev'].visibility='hidden'");

			eval("document.layers['diagoff'].visibility='show'");
		  eval("document.layers['prevoff'].visibility='show'");
		}
		else if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)!="4") {
			eval("window.document.getElementById('diag').style.display='none'");
			eval("window.document.getElementById('prev').style.display='none'");
		}
		else {
			eval("window.document.all.diag.style.display='none'");
			eval("window.document.all.prev.style.display='none'");
		}

	}
	else if (newPhotoNbr > 3) {

 		if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)=="4") {
			eval("document.layers['next'].visibility='hidden'");

			eval("document.layers['nextoff'].visibility='show'");
		}
		else if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)!="4") {
			eval("window.document.getElementById('next').style.display='none'");
		}
		else {
			eval("window.document.all.next.style.display='none'");
		}

  }
  else {

 		if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)=="4") {
			eval("document.layers['diag'].visibility='show'");
			eval("document.layers['prev'].visibility='show'");
			eval("document.layers['next'].visibility='show'");

			eval("document.layers['diagoff'].visibility='hidden'");
			eval("document.layers['prevoff'].visibility='hidden'");
			eval("document.layers['nextoff'].visibility='hidden'");
		}
		else if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)!="4") {
			eval("window.document.getElementById('diag').style.display=''");
			eval("window.document.getElementById('prev').style.display=''");
			eval("window.document.getElementById('next').style.display=''");
		}
		else {
			eval("window.document.all.diag.style.display=''");
			eval("window.document.all.prev.style.display=''");
			eval("window.document.all.next.style.display=''");
		}
  }

}


////////////////////
//* Photo Change *//
////////////////////

function changePhoto(objPhoto, newPhotoNbr) {

  //alert("changePhoto block")
	oldPhotoNbr = window.document.frmPage.hdnCurrentSlide.value;

  // Set nav images to the regular
	if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)=="4") {
		eval("document.layers['diag'].visibility='show'");
		eval("document.layers['prev'].visibility='show'");
		eval("document.layers['next'].visibility='show'");

		eval("document.layers['diagoff'].visibility='hidden'");
		eval("document.layers['prevoff'].visibility='hidden'");
		eval("document.layers['nextoff'].visibility='hidden'");
	}
	else if (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)!="4") {
		eval("window.document.getElementById('diag').style.display=''");
		eval("window.document.getElementById('prev').style.display=''");
		eval("window.document.getElementById('next').style.display=''");
	}
	else {
		eval("window.document.all.diag.style.display=''");
		eval("window.document.all.prev.style.display=''");
		eval("window.document.all.next.style.display=''");
	}

	// Swap the photo
  objPhoto.src = newPhoto[newPhotoNbr];

  // Swap the caption (alt tag)
	//objPhoto.alt = newAlt[newPhotoNbr];
  document.getElementById("slidephoto").alt = newAlt[newPhotoNbr];

  document.getElementById("slidephotolink").href = newHref[newPhotoNbr];

  // Change the old hidden form value to the new one
  window.document.frmPage.hdnCurrentSlide.value = newPhotoNbr;

  // Build Prev/Next Nav
  prevnextNav(newPhotoNbr);
}

//-->