// JavaScript Document

function changeElementsStyle(a){
   document.getElementById(a + '_bkg').style.background = "url(images/off_bkg.gif)";
   document.getElementById(a + '_left').style.background = "url(images/off_left.gif)";
   document.getElementById(a + '_left').style.backgroundRepeat = "no-repeat";
   document.getElementById(a + '_left').style.backgroundPosition = "left top"; 
   document.getElementById(a + '_right').style.background = "url(images/off_right.gif)";
   document.getElementById(a + '_right').style.backgroundRepeat = "no-repeat";
   document.getElementById(a + '_right').style.backgroundPosition = "right top";
}

function changeElementsStyle2(a){
   document.getElementById(a + '_bkg').style.background = "url(images/on_bkg.gif)";
   document.getElementById(a + '_left').style.background = "url(images/on_left.gif)";
   document.getElementById(a + '_left').style.backgroundRepeat = "no-repeat";
   document.getElementById(a + '_left').style.backgroundPosition = "left top"; 
   document.getElementById(a + '_right').style.background = "url(images/on_right.gif)";
   document.getElementById(a + '_right').style.backgroundRepeat = "no-repeat";
   document.getElementById(a + '_right').style.backgroundPosition = "right top";
}

function changeTab(){
	document.getElementById('local').style.display = "block";
	document.getElementById('nonlocal').style.display = "none";
	document.getElementById('local_1').style.display = "none";
	document.getElementById('nonlocal_1').style.display = "block";
	document.getElementById('local_2').style.display = "none";
	document.getElementById('nonlocal_2').style.display = "block";
	document.getElementById('ff').style.display = "none";
	document.getElementById('wk').style.display = "none";
	document.getElementById('fp').style.display = "block";
}

function changeTab2(){
	document.getElementById('local_1').style.display = "block";
	document.getElementById('nonlocal_1').style.display = "none";
	document.getElementById('local').style.display = "none";
	document.getElementById('nonlocal').style.display = "block";
	document.getElementById('local_2').style.display = "none";
	document.getElementById('nonlocal_2').style.display = "block";
	document.getElementById('fp').style.display = "none";
	document.getElementById('ff').style.display = "none";
	document.getElementById('wk').style.display = "block";
}

function changeTab3(){
	document.getElementById('local_2').style.display = "block";
	document.getElementById('nonlocal_2').style.display = "none";
	document.getElementById('local').style.display = "none";
	document.getElementById('nonlocal').style.display = "block";
	document.getElementById('local_1').style.display = "none";
	document.getElementById('nonlocal_1').style.display = "block";
	document.getElementById('fp').style.display = "none";
	document.getElementById('wk').style.display = "none";
	document.getElementById('ff').style.display = "block";
}