<!--ROLLOVER NAVIGATION

//CAST IRON DRAINAGE
cast= new Image(126,19);
cast.src="/images/nav/cast_iron_drainage.gif";
cast_on= new Image(126,19);
cast_on.src="/images/nav/cast_iron_drainage_on.gif";

//ARCHITECTURAL CAST IRON
architectural= new Image(161,19);
architectural.src="/images/nav/architectural_cast_iron.gif";
architectural_on= new Image(161,19);
architectural_on.src="/images/nav/architectural_cast_iron_on.gif";

//ENGINEERING CASTINGS
engineering= new Image(143,19);
engineering.src="/images/nav/engineering_castings.gif";
engineering_on= new Image(143,19);
engineering_on.src="/images/nav/engineering_castings_on.gif";

//CASTINGS SUPPLY
castings= new Image(110,19);
castings.src="/images/nav/castings_supply.gif";
castings_on= new Image(110,19);
castings_on.src="/images/nav/castings_supply_on.gif";

//ABOUT HARGREAVES FOUNDRY
about= new Image(174,19);
about.src="/images/nav/about_hargreaves_foundary.gif";
about_on= new Image(174,19);
about_on.src="/images/nav/about_hargreaves_foundary_on.gif";

function roll(imagename, imgsrc){
	document.images[imagename].src=eval(imgsrc+'.src');
}
//-->