//Common JavaScript functions.

function getObjectByID(obj){
 	if(document.getElementById)
		return document.getElementById(obj);
	else if(document.all)
		return document.all[obj];
	else if(document.layers)
		return document.layers[obj];
	else
		return null
}

function getObjectByName(obj){				
	if(document.getElementsByName){
		oElements = document.getElementsByName(obj);
		if(oElements.length > 0)
			return oElements[0];
		else
			return null;
	}
	else if(document.all)
		return document.all[obj][0];
	else if(document.layers)
		return document.layers[obj][0];
	else
		return null
}

function getObjectsByName(obj){
	if(document.getElementsByName)
		return document.getElementsByName(obj);
	else if(document.all)
		return document.all[obj];
	else if(document.layers)
		return document.layers[obj];
	else
		return null
}

function getObjectValueByName(obj){
	var theObj = getObjectByName(obj);
	
	if(theObj != null) return theObj.value;
	else return null;
}

function getObjectValueByID(obj){
	var theObj = getObjectByID(obj);
	
	if(theObj != null) return theObj.value;
	else return null;
}

function setObjectValueByName(obj){
	var theObj = getObjectByName(obj);
	
	if(theObj != null) return theObj.value;
	else return null;
}

function setObjectValueByID(obj, value){
	var theObj = getObjectByID(obj);
	
	if(theObj != null){
		theObj.value = value;
		return true;
	}
	else return false;
}

function setObjectValueByName(obj, value){
	var theObj = getObjectByName(obj);
	
	if(theObj != null){
		theObj.value = value;
		return true;
	}
	else return false;
}