var tableRowsId = new Array();
function setStyleByClassName(cName,elm,styleType,styleVal){
	var objs = document.getElementsByTagName(elm);
	var selObjs = new Array();
	for(var i=0,len=objs.length;i<len;i++){
		if(objs[i].className == cName){
			document.getElementById(objs[i].id).style[styleType] = styleVal;
			selObjs[selObjs.length] = objs[i];}
	}
	return selObjs;
}

function changeRowState(rId,cName){
	var displayVal = "block", expandClass = "wvuscollapse", linkId = rId + "link";
	if(!tableRowsId[rId]){tableRowsId[rId] = new Array();tableRowsId[rId]["state"]=false}
	if(tableRowsId[rId]["state"]==true){displayVal="none";expandClass="wvusexpand";}
	setStyleByClassName(cName,'tr','display',displayVal);
	tableRowsId[rId]["state"] = (!tableRowsId[rId]["state"]);
	document.getElementById(linkId).className = expandClass;
	blurobject(rId);
}

function blurobject(id){
	if(document.getElementById(id).blur){
	     document.getElementById(id).blur();
	}
}