var i = 0;
var objid_old = 0;
var catid = 'la';
var lnumbid = 52;
var thumbid;


function setCategory(cat,thumb_numb,lnumb) {
thumbid = ('th_' + thumb_numb);
catid = cat;
lnumbid = lnumb;
var objid = 'obj' + cat;
objid = document.getElementById(thumbid);



objid.style.border = 'solid 2px #AEBECB';

if (objid_old != 0 ) {
objid_x = document.getElementById(objid_old);
objid_x.style.border = 'solid 2px #FFFFFF';
}
i = 0;
slideNext();
objid_old = thumbid;

return;
}

function slideNext() {

i++
i <= lnumbid ? i = i : i = 1;
document.getElementById('photos').src = ('gallery/photos/'+catid+'/'+i+'.jpg');

return;
}

function slidePrev() {

i > 1 ? i-- : i = lnumbid;
document.getElementById('photos').src = ('gallery/photos/'+catid+'/'+i+'.jpg');

return;
}