images_loaded = 0;
drop_ref = 0;
pending = 0;

function preload_images () {
	if( document.images ) {
		sideArray = new Array( 10 );
			sideArray[0] = new Array( 2 );
				sideArray[0][0] = new Image();
				sideArray[0][0].src = "/gfx/ui/nav/home.gif";
				sideArray[0][1] = new Image();
				sideArray[0][1].src = "/gfx/ui/nav/home-over.gif";
			sideArray[1] = new Array( 2 );
				sideArray[1][0] = new Image();
				sideArray[1][0].src = "/gfx/ui/nav/aboutus.gif";
				sideArray[1][1] = new Image();
				sideArray[1][1].src = "/gfx/ui/nav/aboutus-over.gif";
			sideArray[2] = new Array( 2 );
				sideArray[2][0] = new Image();
				sideArray[2][0].src = "/gfx/ui/nav/testimonials.gif";
				sideArray[2][1] = new Image();
				sideArray[2][1].src = "/gfx/ui/nav/testimonials-over.gif";
			sideArray[3] = new Array( 2 );
				sideArray[3][0] = new Image();
				sideArray[3][0].src = "/gfx/ui/nav/services.gif";
				sideArray[3][1] = new Image();
				sideArray[3][1].src = "/gfx/ui/nav/services-over.gif";
			sideArray[4] = new Array( 2 );
				sideArray[4][0] = new Image();
				sideArray[4][0].src = "/gfx/ui/nav/photo-gallery.gif";
				sideArray[4][1] = new Image();
				sideArray[4][1].src = "/gfx/ui/nav/photo-gallery-over.gif";
			sideArray[5] = new Array( 2 );
				sideArray[5][0] = new Image();
				sideArray[5][0].src = "/gfx/ui/nav/questionnaire.gif";
				sideArray[5][1] = new Image();
				sideArray[5][1].src = "/gfx/ui/nav/questionnaire-over.gif";
			sideArray[6] = new Array( 2 );
				sideArray[6][0] = new Image();
				sideArray[6][0].src = "/gfx/ui/nav/design-aid.gif";
				sideArray[6][1] = new Image();
				sideArray[6][1].src = "/gfx/ui/nav/design-aid-over.gif";
			sideArray[7] = new Array( 2 );
				sideArray[7][0] = new Image();
				sideArray[7][0].src = "/gfx/ui/nav/faqs.gif";
				sideArray[7][1] = new Image();
				sideArray[7][1].src = "/gfx/ui/nav/faqs-over.gif";
			sideArray[8] = new Array( 2 );
				sideArray[8][0] = new Image();
				sideArray[8][0].src = "/gfx/ui/nav/links.gif";
				sideArray[8][1] = new Image();
				sideArray[8][1].src = "/gfx/ui/nav/links-over.gif";   
			sideArray[9] = new Array( 2 );
				sideArray[9][0] = new Image();
				sideArray[9][0].src = "/gfx/ui/nav/contactus.gif";
				sideArray[9][1] = new Image();
				sideArray[9][1].src = "/gfx/ui/nav/contactus-over.gif";                                  
                              
	}
		
	images_loaded = 1;
}

function sideOver( rowNum ) {
	if( document.images && images_loaded ) {
		document.images[ ( 'side' + rowNum ) ].src = sideArray[rowNum-1][1].src;
	}
}

function sideOut( rowNum ) {
	if( document.images && images_loaded ) {
		document.images[ ( 'side' + rowNum ) ].src = sideArray[rowNum-1][0].src;
    	}
}