//----------------------------------------------------------------------------
// validate fields
//----------------------------------------------------------------------------
	var ver="no_image";
	if(document.images) ver="likes_image_object";
	function makearray(n){
		this.length=n + 1;
		for(var i=0; i<=n; i++)
			{this[i]=0;}
			return this}
	if(ver=="likes_image_object")
		{	
		var rollers=new makearray(18);
		for(var i=0; i<=18; i++){rollers[i]=new Image();}
		
		//swaps VVVVV
		rollers[0].src="images/jv_home.gif";
		rollers[1].src="images/jv_sitemap.gif";	
		rollers[2].src="images/jv_about.gif";
		rollers[3].src="images/jv_csa.gif";
		rollers[4].src="images/jv_business.gif";
		rollers[5].src="images/jv_science.gif";	
		rollers[6].src="images/jv_youth.gif";
		rollers[7].src="images/jv_what.gif";
		rollers[8].src="images/jv_space.gif";
		
		//originals VVVV
		rollers[9].src="images/nav_home.gif";
		rollers[10].src="images/nav_sitemap.gif";
		rollers[11].src="images/nav_about.gif";
		rollers[12].src="images/nav_csa.gif";
		rollers[13].src="images/nav_business.gif";
		rollers[14].src="images/nav_science.gif";
		rollers[15].src="images/nav_youth.gif";
		rollers[16].src="images/nav_what.gif";
		rollers[17].src="images/nav_space.gif";
	}

	function rollover(Mnum) 
	{
		if(ver=="likes_image_object")
		{
		if (Mnum=="1") {document.b1.src=rollers[0].src;}
		if (Mnum=="2") {document.b1.src=rollers[9].src;}
		if (Mnum=="3") {document.b2.src=rollers[1].src;}
		if (Mnum=="4") {document.b2.src=rollers[10].src;}
		if (Mnum=="5") {document.b3.src=rollers[2].src;}
		if (Mnum=="6") {document.b3.src=rollers[11].src;}
		if (Mnum=="7") {document.b4.src=rollers[3].src;}
		if (Mnum=="8") {document.b4.src=rollers[12].src;}
		if (Mnum=="9") {document.b5.src=rollers[4].src;}
		if (Mnum=="10") {document.b5.src=rollers[13].src;}
		if (Mnum=="11") {document.b6.src=rollers[5].src;}
		if (Mnum=="12") {document.b6.src=rollers[14].src;}
		if (Mnum=="13") {document.b7.src=rollers[6].src;}
		if (Mnum=="14") {document.b7.src=rollers[15].src;}
		if (Mnum=="15") {document.b8.src=rollers[7].src;}
		if (Mnum=="16") {document.b8.src=rollers[16].src;}
		if (Mnum=="17") {document.b9.src=rollers[8].src;}
		if (Mnum=="18") {document.b9.src=rollers[17].src;}
		}
	}
	
	
	var ver2="no_image";
	if(document.images) ver2="likes_image_object";
	// This is required since some older browser dont support
	// new arrays
	function makearray(n){
		this.length=n + 1;
		for(var i=0; i<=n; i++)
			{this[i]=0;}
		return this;
	}
	
	// Simple swap, replace obj.src with the specifed index
	function doRoll(obj, index){
		if(ver2=="likes_image_object"){
			obj.src=rollerx[index].src;
		}
	}

	if(ver=="likes_image_object"){
	// Preload graphs here
		var rollerx=new makearray(25);
		for(var i=0; i<=25; i++)
			{rollerx[i]=new Image();}	
	        rollerx[0].src = "images/about/inside/jv_1.gif";
	        rollerx[1].src = "images/about/inside/jv_2.gif";
	        rollerx[2].src = "images/about/inside/jv_3.gif";
	        rollerx[3].src = "images/about/inside/jv_4.gif";
	        rollerx[4].src = "images/about/inside/jv_5.gif";
	        rollerx[5].src = "images/about/inside/jv_6.gif";
	        rollerx[6].src = "images/about/inside/jv_7.gif";
	        rollerx[7].src = "images/about/inside/jv_8.gif";
	        rollerx[8].src = "images/about/inside/jv_9.gif";
	        rollerx[9].src = "images/about/inside/jv_10.gif";
	        rollerx[10].src = "images/about/inside/jv_11.gif"
	        rollerx[11].src = "images/about/inside/jv_12.gif"	
	        rollerx[12].src = "images/about/inside/jv_13.gif"		  	  
	        rollerx[13].src = "images/about/inside/nav_1.gif";
	        rollerx[14].src = "images/about/inside/nav_2.gif";
	        rollerx[15].src = "images/about/inside/nav_3.gif";
	        rollerx[16].src = "images/about/inside/nav_4.gif";
	        rollerx[17].src = "images/about/inside/nav_5.gif";
	        rollerx[18].src = "images/about/inside/nav_6.gif";
	        rollerx[19].src = "images/about/inside/nav_7.gif";
	        rollerx[20].src = "images/about/inside/nav_8.gif";
	        rollerx[21].src = "images/about/inside/nav_9.gif";
	        rollerx[22].src = "images/about/inside/nav_10.gif";
	        rollerx[23].src = "images/about/inside/nav_11.gif";
	        rollerx[24].src = "images/about/inside/nav_12.gif";
	        rollerx[25].src = "images/about/inside/nav_13.gif";		  		  
	}