// reset portfolio thumbs
function changeClass() {
var images = document.getElementsByTagName('img');
 
for (var i=0; i<images.length; i++) {
if (images[i].className == 'thumbfocus') images[i].className='thumbs';
}
}

// highlight selected portfolio
function selectThumb(thumbId) {
document.getElementById(thumbId).className='thumbfocus';
}

// reset project categories link colors
function resetFocus() {

var hrefs = document.getElementsByTagName("a");

for (var i=0; i<hrefs.length;i++) { 
if (hrefs[i].className == 'categoryfocus') hrefs[i].className='projectcategories';
} 
}

// highlight selected project category link
function focusText(projectcategoryId) {
document.getElementById(projectcategoryId).className='categoryfocus';
}