<!--
var layerRef;
var styleRef;
var ua=navigator.userAgent.toLowerCase();
var dom=(document.getElementById) ? 1 : 0;
var nn4=(document.layers) ? 1 : 0;
var ie=(((ua.indexOf('msie')!=-1) && (ua.indexOf('opera')==-1))) ? 1 : 0;
var opera=(ua.indexOf('opera')!=-1) ? 1 : 0;
var divId;
var divIdCurrent;

if (dom) {
	layerRef="document.getElementById(divId)";	
	styleRef=".style";
} else if (ie) {
	layerRef="document.all[divId]";
	styleRef=".style";	
} else if (nn4) {
	layerRef="document.layers[divId]";	
	styleRef="";	
} else {
	layerRef="document.getElementById(divId)";	
	styleRef=".style";	
}


function showItem(divId) {
	if (eval(layerRef)) { 
		eval(layerRef+styleRef+'.display="block"');
		divIdCurrent = divId;
	}	
}

function hideItem(divId) {
	if (eval(layerRef)) {
		eval(layerRef+styleRef+'.display="none"');
		
	}
}

function showCurrent() {
	showItem(divIdCurrent);
}

function hideCurrent() {
	hideItem(divIdCurrent);
}




//-->