// JavaScript Document

// switches divs on and off for each option selected
// can be done with css in modern browser
function show(its_id) {
	// sets visible on mouse action
	var the_div = document.getElementById(its_id);
	var alldivs = document.getElementsByTagName('div');
	var el, i = 0 ;
	while (el = alldivs.item(i++)) {
		 if (el.id.indexOf('pop_div') != -1) {
			// alert(el.id.substr(4,6));
			each_div = document.getElementById(el.id);
			each_div.style.visibility = "hidden";
			}
		}
	the_div.style.visibility = "visible";
	}

// switches divs off for each option selected
function hide(its_id) {
	// sets invisible on mouse action
	var the_div = document.getElementById(its_id);
	var alldivs = document.getElementsByTagName('div');
	var el, i = 0 ;
	while (el = alldivs.item(i++)) {
		 if (el.id.indexOf('pop_div') != -1) {
			// alert(el.id.substr(4,6));
			each_div = document.getElementById(el.id);
			each_div.style.visibility = "hidden";
			}
		}
	the_div.style.visibility = "hidden";
	}