String.prototype.trim = function()
{
  return this.replace(/(^\s*)|(\s*$)/g, "");
}

function getObj(objName){
	if(document.getElementById){
		return eval('document.getElementById(objName)');
	}else if(document.layers){
		return eval("document.layers[objName]");
	}else{
		return eval('document.all.' + objName);
	}
}