function clearTextBox(element,clearString){
	if(element.value==clearString){element.value='';}
}
function setTextBox(element,clearString){
	if(element.value==''){element.value=clearString;}
}
function do_action(action_url,resultDiv,idVarName,idvalue){
	new Ajax(action_url+"?"+idVarName+"="+idvalue, {method: 'get',update:resultDiv}).request();
	return false;
}
//Function to limit text entered into textarea
function limitText(textArea, length) {
	if (textArea.value.length > length) {
		textArea.value = textArea.value.substr(0,length);
	}
}