// JavaScript Document
if (document.images) {            
	      img1on = new Image();      
          img1on.src = "images/nav/opt1_on.gif";
		  img2on = new Image();      
          img2on.src = "images/nav/opt2_on.gif";
		  img3on = new Image();      
          img3on.src = "images/nav/opt3_on.gif";
		  img4on = new Image();      
          img4on.src = "images/nav/opt4_on.gif";
		  img5on = new Image();      
          img5on.src = "images/nav/opt5_on.gif";
		  img6on = new Image();      
          img6on.src = "images/nav/opt6_on.gif";
		  img7on = new Image();      
          img7on.src = "images/nav/opt7_on.gif";
		  img8on = new Image();      
          img8on.src = "images/nav/opt8_on.gif";
		  img9on = new Image();      
          img9on.src = "images/nav/opt9_on.gif";

	      img1off = new Image(); 
		  img1off.src = "images/nav/opt1_off.gif";
		  img2off = new Image(); 
          img2off.src = "images/nav/opt2_off.gif";
		  img3off = new Image(); 
          img3off.src = "images/nav/opt3_off.gif";
		  img4off = new Image(); 
          img4off.src = "images/nav/opt4_off.gif";
		  img5off = new Image(); 
          img5off.src = "images/nav/opt5_off.gif";
		  img6off = new Image(); 
          img6off.src = "images/nav/opt6_off.gif";
		  img7off = new Image(); 
          img7off.src = "images/nav/opt7_off.gif";
		  img8off = new Image(); 
          img8off.src = "images/nav/opt8_off.gif";
		  img9off = new Image(); 
          img9off.src = "images/nav/opt9_off.gif";
		}
		
		function imgOn(imgName) {
        	if (document.images) {
            	document[imgName].src = eval(imgName + "on.src");
        		}
		}
		function imgOff(imgName) {
        	if (document.images) {
            	document[imgName].src = eval(imgName + "off.src");
        		}
		}
//-->
function shToggle(content) {
	if (document.getElementById(content).style.display == "none") 
		document.getElementById(content).style.display = "block"
	else
		document.getElementById(content).style.display = "none"
}