need help on color selection

hey guys, i have a script below for color selection which I got from a source . it works and it shows the color of the tshirt when i click the color thumbnails. but i would like to have a textbox that displays the word of the color when i have select the colour. is there anyone knows how to do this. also since this t-shirt has a pproduct code, how can i incorporate into the script below?

<script>
var selectedCell=null;

function depressCell(color){
	var cell=null;
	if (""+color=="undefined"){
		cell=window.event.srcElement
		}
	else {
		cell=document.all(color);
		}
	if (cell.tagName=="TD"){
		if (selectedCell!=null){
			selectedCell.style.border="outset 2pt #D0D0D0"
			}
		cell.style.border="inset 2pt #D0D0D0"
		selectedCell=cell;
		updateResult(cell)
		}
	}

function updateResult(cell){
	displayCell.style.backgroundColor=cell.style.backgroundColor;
	displayCell.align="center";
	displayCell.valign="middle";
	displayCell.style.fontWeight="bold";
	if ((cell.title=="White")||(cell.title=="Yellow")){
		displayCell.style.color="#000000";
		}
	else {
		displayCell.style.color="#FFFFFF";
		}	
	tshirtImage.src="images/TShirt"+cell.title+".jpg";	
	}	
swatches.onmousedown=depressCell
depressCell("White");

</script>

Code (markup):