function nav(e,state) {
	//alert(e);
	if(state == 'hover') {
		document.getElementById(e).src = '/images/nav/' + e + '_hover.jpg';
	}else {
		document.getElementById(e).src = '/images/nav/' + e + '.jpg';
	}
}

/* Show Hide Function */
function hide_show(id) {
	//alert(id);
	if(document.getElementById(id)) {
		var it = document.getElementById(id);
	}
	if(it.style.visibility != 'hidden') {
		it.style.display = 'none';
		it.style.visibility = 'hidden';
	}else{
		it.style.display = 'block';
		it.style.visibility = 'visible';
	}
}
function tabs_hide_show(tab){
    var tabs_arr = new Array('tab1','tab2');
    for(i = 0;i < tabs_arr.length;i++){
        var it = document.getElementById(tabs_arr[i]);
        it.style.display = 'none';
        it.style.visibility = 'hidden';     
    }
    var it = document.getElementById(tab);
    it.style.display = 'block';
    it.style.visibility = 'visible';    
}
/* End of Show Hide Function */