function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/-/g, "\-");
	var oRegExp = new RegExp("(^|\s)" + strClassName + "(\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

function hideAllRes() {
	var aRes = getElementsByClassName(document, "p", "resoluciones");			
	for (var n=0; n<aRes.length; n++)
		aRes[n].style.display = "none";
}
function displayRes(nRes) {
	hideAllRes();
	if (nRes > 0) {
		document.getElementById("res" + nRes).style.display = "block";
		// FIX FOR IE6
		document.getElementById("res" + nRes).style.width = "92%";
	}
}

function setupRes(sEl) {
	if (document.getElementById(sEl)) {
		hideAllRes();
		var eSel = document.getElementById(sEl);			
		if (eSel.value > 0) {
			displayRes(eSel.value);
		}
		eSel.onchange = function() {
			displayRes(this.value);
		};	
	}
}