function showHide(element) {
	if (document.getElementById) {
		// W3C standard
		var style2 = document.getElementById(element).style;
		style2.display = style2.display ? "" : "block";
	}
	else if (document.all) {
		// old MSIE versions
		var style2 = document.all[element].style;
		style2.display = style2.display ? "" : "block";
	}
	else if (document.layers) {
		// Netscape 4
		var style2 = document.layers[element].style;
		style2.display = style2.display ? "" : "block";
	}
}

function plusMinus() {
	cClass = this.className;
	if (cClass = 'plus')
		{cClass = 'minus' ;	alert(cClass); return;}
	cClass = 'plus' ; alert(cClass); return;
}