// JavaScript Document
function imgSwap(oImg)
{
   var strOver  = "_on"    // image to be used with mouse over
   var strOff = "_off"     // normal image
   var strImg = oImg.src
   if (strImg.indexOf(strOver) != -1) 
      oImg.src = strImg.replace(strOver,strOff)
   else
      oImg.src = strImg.replace(strOff,strOver)
}
/* used on the plugins page.  this either hides or shows the plugin description */
function togglePluginDescrDisplay(descrDivId) {
	var descrArrow = document.getElementById(descrDivId+'_arrow');
	if (descrArrow.src.indexOf('plugin_descr_off.gif') != -1 ) {
		descrArrow.src = 'images/plugin_descr_on.gif';
		var descrDiv = 	document.getElementById(descrDivId);
		descrDiv.style.display = '';
	} else {
		descrArrow.src = 'images/plugin_descr_off.gif';
		var descrDiv = 	document.getElementById(descrDivId);
		descrDiv.style.display = 'none';
	}
	
}