function switchimage(id, image, text)

{

    thediv = document.getElementById(id);
	if (text.length > 0){
		thediv.innerHTML = "<img src='" + image + "' alt='"+ text +"' class='fixedsize' title='"+ text +"'/><p align='center'><b>" + text + "</b></p>";
	} else {
    	thediv.innerHTML = "<img src='" + image + "' alt='selected image' class='fixedsize' />";
	}
}





//Step Carousel Viewer: By Dynamic Drive, at http://www.dynamicdrive.com

//Created: March 19th, 08'



jQuery.noConflict()



var stepcarousel={

	ajaxloadingmsg: '<div style="margin: 1em; font-weight: bold"><img src="ajaxloadr.gif" style="vertical-align: middle" /> Fetching Content. Please wait...</div>', //customize HTML to show while fetching Ajax content

	configholder: {},



	getCSSValue:function(val){ //Returns either 0 (if val contains 'auto') or val as an integer

		return (val=="auto")? 0 : parseInt(val)

	},



	getremotepanels:function($, config){ //function to fetch external page containing the panel DIVs

		config.$belt.html(this.ajaxloadingmsg)

		$.ajax({

			url: config.contenttype[1], //path to external content

			async: true,

			error:function(ajaxrequest){

				config.$belt.html('Error fetching content.<br />Server Response: '+ajaxrequest.responseText)

			},

			success:function(content){

				config.$belt.html(content)

				config.$panels=config.$gallery.find('.'+config.panelclass)

				stepcarousel.alignpanels($, config)

			}

		})

	},



	alignpanels:function($, config){

		var paneloffset=0

		config.paneloffsets=[paneloffset] //array to store upper left offset of each panel (1st element=0)

		config.panelwidths=[] //array to store widths of each panel

		config.$panels.each(function(index){ //loop through panels

			var $currentpanel=$(this)

			$currentpanel.css({float: 'none', position: 'absolute', left: paneloffset+'px'}) //position panel

			$currentpanel.bind('click', function(e){return config.onpanelclick(e.target)}) //bind onpanelclick() to onclick event

			paneloffset+=stepcarousel.getCSSValue($currentpanel.css('marginRight')) + parseInt($currentpanel.get(0).offsetWidth) //calculate next panel offset

			config.paneloffsets.push(paneloffset) //remember this offset

			config.panelwidths.push(paneloffset-config.paneloffsets[config.paneloffsets.length-2]) //remember panel width

		})

		config.paneloffsets.pop() //delete last offset (redundant)

		config.$belt.css({width: paneloffset+'px'}) //Set Belt DIV to total panels' widths

		this.statusreport(config.galleryid)

		config.oninit()

		config.onslideaction(this)

	},



	stepTo:function(galleryid, pindex){ /*User entered pindex starts at 1 for intuitiveness. Internally pindex still starts at 0 */

		var config=stepcarousel.configholder[galleryid]

		if (typeof config=="undefined"){

			alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")

			return

		}

		var pindex=Math.min(pindex-1, config.paneloffsets.length-1)

		var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset)

		config.$belt.animate({left: -endpoint+'px'}, 'slow', function(){config.onslideaction(this)})

		config.currentpanel=pindex

		this.statusreport(galleryid)

	},



	stepBy:function(galleryid, steps){

		var config=stepcarousel.configholder[galleryid]

		if (typeof config=="undefined"){

			alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")

			return

		}

		var direction=(steps>0)? 'forward' : 'back' //If "steps" is negative, that means backwards

		var pindex=config.currentpanel+steps //index of panel to stop at

		pindex=(pindex>config.paneloffsets.length-1 || pindex<0 && pindex-steps>0)? 0 : (pindex<0)? config.paneloffsets.length+steps : pindex //take into account end or starting panel and step direction 

		var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset) //left distance for Belt DIV to travel to

		if (pindex==0 && direction=='forward' || config.currentpanel==0 && direction=='back'){ //decide whether to apply "push pull" effect

			config.$belt.animate({left: -config.paneloffsets[config.currentpanel]-(direction=='forward'? 100 : -30)+'px'}, 'normal', function(){

				config.$belt.animate({left: -endpoint+'px'}, 'slow', function(){config.onslideaction(this)})

			})

		}

		else

			config.$belt.animate({left: -endpoint+'px'}, 'slow', function(){config.onslideaction(this)})

		config.currentpanel=pindex

		this.statusreport(galleryid)

	},



	statusreport:function(galleryid){

		var config=stepcarousel.configholder[galleryid]

		var startpoint=config.currentpanel //index of first visible panel 

		var visiblewidth=0

		for (var endpoint=startpoint; endpoint<config.paneloffsets.length; endpoint++){ //index (endpoint) of last visible panel

			visiblewidth+=config.panelwidths[endpoint]

			if (visiblewidth>config.gallerywidth){

				break

			}

		}

		startpoint+=1 //format startpoint for user friendiness

		endpoint=(endpoint+1==startpoint)? startpoint : endpoint //If only one image visible on the screen and partially hidden, set endpoint to startpoint

		var valuearray=[startpoint, endpoint, config.panelwidths.length]

		for (var i=0; i<config.statusvars.length; i++){

			window[config.statusvars[i]]=valuearray[i] //Define variable (with user specified name) and set to one of the status values

			config.$statusobjs[i].html(valuearray[i]) //Populate element on page with ID="user specified name" with one of the status values

		}

	},



	setup:function(config){

		//Disable Step Gallery scrollbars ASAP dynamically (enabled for sake of users with JS disabled)

		document.write('<style type="text/css">\n#'+config.galleryid+'{overflow: hidden;}\n</style>')

		jQuery(document).ready(function($){

			config.$gallery=$('#'+config.galleryid)

			config.gallerywidth=config.$gallery.width()

			config.$belt=config.$gallery.find('.'+config.beltclass) //Find Belt DIV that contains all the panels

			config.$panels=config.$gallery.find('.'+config.panelclass) //Find Panel DIVs that each contain a slide

			config.onpanelclick=(typeof config.onpanelclick=="undefined")? function(target){} : config.onpanelclick //attach custom "onpanelclick" event handler

			config.onslideaction=(typeof config.onslide=="undefined")? function(){} : function(beltobj){$(beltobj).stop(); config.onslide()} //attach custom "onslide" event handler

			config.oninit=(typeof config.oninit=="undefined")? function(){} : config.oninit //attach custom "oninit" event handler

			config.beltoffset=stepcarousel.getCSSValue(config.$belt.css('marginLeft')) //Find length of Belt DIV's left margin

			config.statusvars=config.statusvars || []  //get variable names that will hold "start", "end", and "total" slides info

			config.$statusobjs=[$('#'+config.statusvars[0]), $('#'+config.statusvars[1]), $('#'+config.statusvars[2])]

			config.currentpanel=0

			stepcarousel.configholder[config.galleryid]=config //store config parameter as a variable

			if (config.contenttype[0]=="ajax" && typeof config.contenttype[1]!="undefined") //fetch ajax content?

				stepcarousel.getremotepanels($, config)

			else

				stepcarousel.alignpanels($, config) //align panels and initialize gallery

		}) //end document.ready

		jQuery(window).bind('unload', function(){ //clean up

			jQuery.each(config, function(ai, oi){

				oi=null

			})

			config=null

		})

	}

}






