// JavaScript Document

function rollover(page, state){
	if(page){
		var caption = document.getElementById(page+"caption");
		if(caption){
			//alert(caption)
			if(state=='highlight'){
				if(page=='flatt'||page=='shapedt'||page=='flatc'||page=='shapedc')
					caption.className = 'nav highlight';
				else
					caption.className = 'caption highlight';
			}else{
				switch(page){
					case 'about':
						caption.className = 'caption blackback';
						break;
					case 'concrete':
						caption.className = 'caption greyback';
						break;
					case 'terracotta':
						caption.className = 'caption orangeback';
						break;
					case 'flatc':
						caption.className = 'nav greyback';
						break;
					case 'flatt':
						caption.className = 'nav orangeback';
						break;
					case 'shapedc':
						caption.className = 'nav greyback';
						break;
					case 'shapedt':
						caption.className = 'nav orangeback';
						break;
				}
			}
		}
	}
}