if (document.images){
       m1on=new Image();
       m1on.src="images/btn2_home.gif";
       m1off=new Image();
       m1off.src="images/btn1_home.gif";
       m2on=new Image();
       m2on.src="images/btn2_contactus.gif";
       m2off=new Image();
       m2off.src="images/btn1_contactus.gif";   
       m3on=new Image();
       m3on.src="images/btn2_aboutus.gif";
       m3off=new Image();
       m3off.src="images/btn1_aboutus.gif";
       m4on=new Image();
       m4on.src="images/btn2_lh_providers.gif";
       m4off=new Image();
       m4off.src="images/btn1_lh_providers.gif";
       m5on=new Image();
       m5on.src="images/btn2_forms.gif";
       m5off=new Image();
       m5off.src="images/btn1_forms.gif";
	   m6on=new Image();
       m6on.src="images/btn2_provider_list.gif";
       m6off=new Image();
       m6off.src="images/btn1_provider_list.gif";
	   m7on=new Image();
       m7on.src="images/btn2_services.gif";
       m7off=new Image();
       m7off.src="images/btn1_services.gif"; 
     }
  function imgOn(imgName){
    if (document.images){
       document[imgName].src=eval(imgName+"on.src" );
    }
  }
  function imgOff(imgName){
    if (document.images){
      document[imgName].src=eval(imgName+"off.src");
    }
  }
  
cm=null;
hide_delay=200;
tstat=0;

isNS4 = (document.layers) ? true : false;
isIE4 = (document.all && !document.getElementById) ? true : false;
isIE5 = (document.all && document.getElementById) ? true : false;
isNS6 = (!document.all && document.getElementById) ? true : false;

function switchDiv(objElement,bolVisible){
if(isNS4||isIE4){
     if(!bolVisible) {
       objElement.visibility ="hidden"
     } else {
       objElement.visibility ="visible"
     }     
 } else if (isIE5 || isNS6) {
      if(!bolVisible){
         objElement.style.display = "none";
         
      } else {
        objElement.style.display = "";
        
        }

      }

return 1;
}

function getPos(el,sProp) {
	var iPos = 0;
	while (el!=null) {
		iPos+=el["offset" + sProp]
		el = el.offsetParent
	}
	return iPos

}

function getelementbyid(myid) {
   if (isNS4){
        objElement = document.layers[myid];
     }else if (isIE4) {
        objElement = document.all[myid];
     }else if (isIE5 || isNS6) {
             objElement = document.getElementById(myid);
     }
return(objElement);
}

function show(el,m) {
 if (cm!=null) {
 switchDiv(cm,false);
 }
 if (m!=null) {
 m=getelementbyid(m);
 m.style.left = getPos(el,"Left")+"px";
 m.style.top =  getPos(el,"Top")+el.offsetHeight+"px";
 switchDiv(m,true);
 cm=m;
 }

}
function hidemenu() {

timer1=setTimeout("show(null,null)",hide_delay);

tstat=1;

return 1;
}

function cancelhide() {
 if (tstat==1) {
 clearTimeout(timer1);
 tstat=0;
 }
return 1;
}