function image_over(obj) {
var elem=document.getElementById(obj);
var elemSrc = new String(elem.src);
elem.src = elemSrc.replace('neutral', 'over');
}

function image_neutral(obj) {
var elem=document.getElementById(obj);
var elemSrc = new String(elem.src);
elem.src = elemSrc.replace('over', 'neutral');
}

function image_active(obj) {
var elem=document.getElementById(obj);
var elemSrc = new String(elem.src);
elem.src = elemSrc.replace('neutral', 'active');
}


function change_work(obj) {
	for (var i=1; i<work.length; i++) {
		var elementWORK = 'work_' + work[i];
		var elementLINK= 'link_' + work[i];
		var elmWORK=document.getElementById(elementWORK);
		var elmLINK=document.getElementById(elementLINK);

		if (obj==elementWORK) {
			elmWORK.style.display = "block"; 
			elmLINK.className = "select"; 
			} else {
				elmWORK.style.display = "none"; 
				elmLINK.className = "neutral"; 
				}
	}
}

function img_next(obj) {
	var elemID_img = 'img_' + obj;
	var elemID_txt = 'txt_' + obj;
	var elem_img = document.getElementById(elemID_img);
	var elem_img_src = elem_img.src;
	var elem_txt = document.getElementById(elemID_txt);
	
	for (var s=elem_img_src.length-1; s>-1; s--) {	if (elem_img_src[s] == '/') {break;}}
	elem_img_src = elem_img_src.substring(s+1, elem_img_src.length);
	
	for (var counter=0; counter<work_text[elemID_txt].length; counter++) {	
		var work_images_sub = work_images[elemID_img][counter].substring((work_images[elemID_img][counter].length-elem_img_src.length), work_images[elemID_img][counter].length);
		if (work_images_sub == elem_img_src) {break;}
	}
	
	counter++;
	if (counter==work_text[elemID_txt].length) {
		counter=0;
	}
	//elem_txt.innerHTML = work_text[elemID_txt][counter];
	elem_img.src = work_images[elemID_img][counter];
}

function img_previous(obj) {
	var elemID_img = 'img_' + obj;
	var elemID_txt = 'txt_' + obj;
	var elem_img = document.getElementById(elemID_img);
	var elem_img_src = elem_img.src;
	var elem_txt = document.getElementById(elemID_txt);
	
	for (var s=elem_img_src.length-1; s>-1; s--) {	if (elem_img_src[s] == '/') {break;}}
	elem_img_src = elem_img_src.substring(s+1, elem_img_src.length);
	
	for (var counter=0; counter<work_text[elemID_txt].length; counter++) {	
		var work_images_sub = work_images[elemID_img][counter].substring((work_images[elemID_img][counter].length-elem_img_src.length), work_images[elemID_img][counter].length);
		if (work_images_sub == elem_img_src) {break;}
	}
	
	counter--;
	if (counter==-1) {
		counter=work_text[elemID_txt].length-1;
	}
	//elem_txt.innerHTML = work_text[elemID_txt][counter];
	elem_img.src = work_images[elemID_img][counter];
}

function mov_next(obj) {
	var elemID_img = 'img_' + obj;
	var elemID_txt = 'txt_' + obj;
	var elem_img = document.getElementById(elemID_img);
	var elem_txt = document.getElementById(elemID_txt);
	
	for (var counter=0; counter<work_text[elemID_txt].length; counter++) {		
		if (work_text[elemID_txt][counter] == elem_txt.innerHTML) {break;}
	}

	counter++;
	if (counter==work_text[elemID_txt].length) {
		counter=0;
	}
	elem_txt.innerHTML = work_text[elemID_txt][counter];
	elem_img.innerHTML = "<object width='360' height='360' classid='clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B' codebase='http://www.apple.com/qtactivex/qtplugin.cab'><param name='src' value='" + work_images[elemID_img][counter] + "'><param name='autoplay' value='true'><param name='controller' value='yes'><embed src='" + work_images[elemID_img][counter] + "' width='480' height='480'  autoplay='true' controller='yes' loop='false' href='" + work_images[elemID_img][counter] + "' target='_self' pluginspace='http://www.apple.com/quicktime/'></object>";
}

function mov_previous(obj) {
	var elemID_img = 'img_' + obj;
	var elemID_txt = 'txt_' + obj;
	var elem_img = document.getElementById(elemID_img);
	var elem_txt = document.getElementById(elemID_txt);
	
	for (var counter=0; counter<work_text[elemID_txt].length; counter++) {		
		if (work_text[elemID_txt][counter] == elem_txt.innerHTML) {break;}
	}
	counter--;
	if (counter==-1) {
		counter=work_text[elemID_txt].length-1;
	}
	elem_txt.innerHTML = work_text[elemID_txt][counter];
	elem_img.innerHTML = "<embed src='" + work_images[elemID_img][counter] + "'  width='240' height='240' autoplay='true'";
}