//toggles tab selected state
function toggleTab( tab_id ) {
	if(document.getElementById) {
		img = document.getElementById(tab_id);
		if(img.src.indexOf(tab_id + '-1.gif') != -1) {
			img.src = 'img/' + tab_id + '-2.gif';
		} else {
			img.src = 'img/' + tab_id + '-1.gif';
		}
	}
}

function setSrc( tab_id, img_src ) {
	if(document.getElementById) {
		img = document.getElementById(tab_id);
		img.src = img_src;
	}
}

function toggle( targetId ){
	if (document.getElementById){
  		target = document.getElementById( targetId );
  			if (target.style.display == "none"){
  				target.style.display = "";
  			} else {
  				target.style.display = "none";
  			}
  	}
}
function movepic(img_name,img_src) {
document[img_name].src=img_src;
}