//global variables
var _PreviousMouse = "clear";
var DHTML = (document.getElementById || document.all || document.layers);


 if (document.images)
   {
     image_off= new Image(221,269);
     image_off.src="images/welcome.jpg";  

     image2_On= new Image(221,269);
     image2_On.src="images/voice.jpg";
	 
	 image3_On= new Image(221,269);
     image3_On.src="images/tty.jpg";
	 
	 image4_On= new Image(221,269);
     image4_On.src="images/vco.jpg";
	 
	 image5_On= new Image(221,269);
     image5_On.src="images/vrs.jpg";
	
	 image6_On= new Image(221,269);
     image6_On.src="images/hco.jpg";
	 
	 image7_On= new Image(221,269);
     image7_On.src="images/sts.jpg";	 

	 image8_On= new Image(221,269);
     image8_On.src="images/captel.jpg";	 

	 image9_On= new Image(221,269);
     image9_On.src="images/rcc.jpg";	
	 
	 image10_On= new Image(221,269);
	 image10_On.src="images/ip.jpg";	 

   }


function stopchange (varClear, imgZone)
	{
		_PreviousMouse = "clear";
		invi("contentdefault");
		document.images[imgZone].src=eval("image_off.src");		

	}

function startchange(invName, imgName, imgZone)
	 {

			_PreviousMouse = invName; 				
		if (_PreviousMouse == invName)
		{	

			invi(invName);
			overpix (imgName, imgZone);
		}
	 }
		
function overpix (imgName, imgZone)
	{	
		var _PreviousMouse = imgName;
		if (document.images)
		{ 
			document.images[imgZone].src=eval(imgName + "_On.src");
	    }
	}
	 
//*** Content Section  ***
function invi(contentid)
	{
		//alert ("Content" + contentid);
		if (!DHTML) return;
		var x2 = new getObj('welcome');
		var x3 = new getObj('voice');
		var x4 = new getObj('tty');
		var x5 = new getObj('vco');
		var x6 = new getObj('vrs');
		var x7 = new getObj('hco');
		var x8 = new getObj('sts');
		var x9 = new getObj('captel');
		var x10 = new getObj('rcc');
		var x11 = new getObj('ip');
 
		switch (contentid){
	
		case "voice": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (0) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;

		case "tty": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (0) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
		
		case "vco": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (0) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
		
		case "vrs": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (0) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
		
		case "hco": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (0) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
		
		case "sts": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (0) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
		
		case "captel":
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (0) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
		
		case "rcc": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (0) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
		
		case "ip": 
		x2.style.visibility = (1) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (0) ? 'hidden' : 'visible'
		break;

		case "contentdefault":
		x2.style.visibility = (0) ? 'hidden' : 'visible'
		x3.style.visibility = (1) ? 'hidden' : 'visible'
		x4.style.visibility = (1) ? 'hidden' : 'visible'
		x5.style.visibility = (1) ? 'hidden' : 'visible'
		x6.style.visibility = (1) ? 'hidden' : 'visible'
		x7.style.visibility = (1) ? 'hidden' : 'visible'
		x8.style.visibility = (1) ? 'hidden' : 'visible'
		x9.style.visibility = (1) ? 'hidden' : 'visible'
		x10.style.visibility = (1) ? 'hidden' : 'visible'
		x11.style.visibility = (1) ? 'hidden' : 'visible'
		break;
	}

function getObj(name)
	{
	  if (document.getElementById)
	  {
		this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	  }
	  else if (document.all)
	  {
		this.obj = document.all[name];
		this.style = document.all[name].style;
	  }
	  else if (document.layers)
	  {
		this.obj = document.layers[name];
		this.style = document.layers[name];
	  }
	}	
}

//-->