// JavaScript - load images for homepage

	 buttonIC = new Image;
	 buttonICon = new Image;
	 buttonEC = new Image;
	 buttonECon = new Image;
	 buttonBC = new Image;
	 buttonBCon = new Image;
	 buttonLC = new Image;
	 buttonLCon = new Image;
	 buttonSC = new Image;
	 buttonSCon = new Image;
	 buttonOS = new Image;
	 buttonOSon = new Image; 
	 
	 buttonIC.src = '/images/nav/imgic.jpg';
	 buttonICon.src = '/images/nav/imgicbw.gif';
	 buttonEC.src = '/images/nav/imgec.jpg';
	 buttonECon.src = '/images/nav/imgecbw.gif';
	 buttonBC.src = '/images/nav/imgbc.jpg';
	 buttonBCon.src = '/images/nav/imgbcbw.gif';
	 buttonLC.src = '/images/nav/imglc.jpg';
	 buttonLCon.src = '/images/nav/imglcbw.gif';
	 buttonSC.src = '/images/nav/imgsc.jpg';
	 buttonSCon.src = '/images/nav/imgscbw.gif';
	 buttonOS.src = '/images/nav/imgos135.jpg';
	 buttonOSon.src = '/images/nav/imgos135bw.gif';		
	 
     
     function swapImg(imgID) {
		switch (imgID)  {
		case "IC":
		  document.IC.src=buttonICon.src;
		  break
		case "EC":
		  document.EC.src=buttonECon.src;
		  break
		case "BC":
		  document.BC.src=buttonBCon.src;
		  break
		case "LC":
		  document.LC.src=buttonLCon.src;
		  break
		case "SC":
		  document.SC.src=buttonSCon.src;
		  break
		case "OS":
		  document.OS.src=buttonOSon.src;
		  break
		}
       }   
     
	   function unswapImg(imgID) {
		switch (imgID)  {
		case "IC":
		  document.IC.src=buttonIC.src;
		  break
		case "EC":
		  document.EC.src=buttonEC.src;
		  break
		case "BC":
		  document.BC.src=buttonBC.src;
		  break
		case "LC":
		  document.LC.src=buttonLC.src;
		  break
		case "SC":
		  document.SC.src=buttonSC.src;
		  break
		case "OS":
		  document.OS.src=buttonOS.src;
		  break
		}
       }   
	 
	 function swapBGColor(cellID) { 
		document.getElementById(cellID).style.background="#85868B"
       }  

	function unswapBGColor(cellID) {	
		var rgb=""
		switch (cellID)  {
		case "IChover":
		  rgb="#9D0C10";
		  break
		case "EChover":
		  rgb="#A44D18";
		  break
		case "BChover":
		  rgb="#5E9226";
		  break
		case "LChover":
		  rgb="#2A7191";
		  break
		case "SChover":
		  rgb="#F2BA2F";
		  break
		case "OShover":
		  rgb="#E29C0B";
		  break
		default:
		  rgb="#003366";
		}	 
		document.getElementById(cellID).style.background=rgb
       }