var gtab;
var gtabh;
function showhide_gtab(id){
	/* clear previous */
	if(gtab == '' || !gtab)
		gtab = $('gl_val').innerHTML
	
	gtabh = gtab+"_h";
	
	if(gtab && gtab != id){
		$(gtab).style.display = 'none';
		$(gtabh).className = 'g-tab';
	}
	
	gtab = id;
	gtabh = gtab+"_h";
	
	$('gl_val').innerHTML = gtab;
	$(gtabh).className = 'g-tab g-tab-selected';
	$(gtab).style.display = 'block';
	
	/* call back */
	if(typeof gtab_ajax=='function')
		gtab_ajax();
}

jQuery(function() {
	jQuery('a[gtab]').click(function(){
		showhide_gtab(jQuery(this).attr('gtab'));
	});
});