function g_next(curr,arr) {
	if(curr==arr[(arr.length-1)]) return false;
	var index = g_getIndexFromCurr(curr,arr);
	new Ajax.Updater($("modal_window"),"/galleryzoom?l=zoom&id="+arr[index+1]);
}
function g_prev(curr,arr) {
	if(curr==arr[0]) return false;
	var index = g_getIndexFromCurr(curr,arr);
	new Ajax.Updater($("modal_window"),"/galleryzoom?l=zoom&id="+arr[index-1]);
}
function g_open(index,arr) {
	if(!arr[index]) return false;
	openFloater('/galleryzoom?l=zoom&id='+arr[index]);
}
function g_close() {
	destroyFloater();
}
function g_getIndexFromCurr(curr,arr) {
	for(i=0;i<arr.length;i++) {
		if(arr[i]==curr) return i;
	}
}