var crownangle = new Image();
	crownangle.src = "../images/learn/crownangle_n.gif";
	var crownheight = new Image();
	crownheight.src = "../images/learn/crownheight_n.gif";
	var cut = new Image();
	cut.src = "../images/learn/cut_n.gif";
	var depth = new Image();
	depth.src = "../images/learn/depth_n.gif";
	var diameter = new Image();
	diameter.src = "../images/learn/diameter_n.gif";
	var girdle = new Image();
	girdle.src = "../images/learn/girdle_n.gif";
	var pavilion = new Image();
	pavilion.src = "../images/learn/pavilion_n.gif";
	var table = new Image();
	table.src = "../images/learn/table_n.gif";
	
	function CutChange(which){	
		document.imgcut.src = which.src;
	}
	var pic = new Array();
	pic[0] = "shallowcut";
	pic[1] = "finecut";
	pic[2] = "idealcut";
	pic[3] = "deepcut";	
	function CutAnimation(which){
		ImgChange = eval("document." + which);
		for(i=0;i<4;i++){
			ImgChange = eval("document." + pic[i]);
			if(which == pic[i]){
				ImgChange.src = "../images/learn/" + which + "_anim.gif";
			}else{
				ImgChange.src = "../images/learn/" + pic[i] + "_static.gif";
			}
		}
	}