var layer=new String();
var style=new String();

function checkBrowser(){
 if(navigator.userAgent.indexOf("MSIE") != -1){
  layer = ".all";
  style = ".style";
 } else if(navigator.userAgent.indexOf("Nav") != -1){
	layer = ".layers";
	style = "";
  }
}

function changeState(layerRef,state){
  document.getElementById(layerRef).style.visibility=state;
}

function jumpMenu(selObj,restore) {
 eval("parent.location='" + selObj.options[selObj.selectedIndex].value + "'");
 if (restore) selObj.selectedIndex = 0;
}

function LTrim (str){
	if( str.indexOf( ' ' ) == 0 ) {
		str = str.substr( 1, str.lenght - 1 );
		str = LTrim( str );
	}
	return str;
}