function fToggleDiv(strDiv) { 
 var objDiv = document.getElementById(strDiv); 
 if(objDiv.style.visibility == "hidden") { 
	 objDiv.style.visibility = "visible"; 
	 objDiv.style.display = "block"; 
	 document.getElementById(strDiv + "plus").src = "img/h_click_collapse.gif"; 
 } else { 
	 objDiv.style.visibility = "hidden"; 
	 objDiv.style.display = "none"; 
	 document.getElementById(strDiv + "plus").src = "img/h_click_expand.gif"; 
 } 
} 


var navPlanOn = new Image();
var navPresOn = new Image();
var navFeedOn = new Image();
var navPlanOff = new Image();
var navPresOff = new Image();
var navFeedOff = new Image();

navPlanOn.src = "img/nav_plan_on.gif";
navPlanOff.src =  "img/nav_plan.gif";
navPresOn.src = "img/nav_pres_on.gif";
navPresOff.src =  "img/nav_pres.gif";
navFeedOn.src = "img/nav_feed_on.gif";
navFeedOff.src =  "img/nav_feed.gif";


function fShowModal(strID) {
	var oDiv = document.getElementById(strID);
	oDiv.style.visibility = "visible";
	oDiv.style.display = "block";
}

function fHideModal(strID) {
	var oDiv = document.getElementById(strID);
	oDiv.style.visibility = "hidden";
	oDiv.style.display = "none";
}


function fVerifyInput(strID, strText) {
	var oInput = document.getElementById(strID);
	if(oInput.value == "") {
		oInput.style.background = "#ffcccc";
		return strText;
	} else {
		oInput.style.background = "";
		return "";
	}
}