// ----------------------------- script for navigation ------------------------------//
function dropit(layerid)
{
	for(i=1; i<5; i++){
		if(layerid != "dropmenu"+i){
			document.getElementById("dropmenu"+i).style.display="none";
		}
	}
	target= document.getElementById(layerid);
	status=target.style.display;			 
	target.style.display=(status!="block")?("block"):("none");	
}
//************************* not in use ----
function show1(layerid)
{
	target= document.getElementById(layerid);
	status=target.style.display;
	target.style.display="";	
}
function hide(layerid)
{
	target= document.getElementById(layerid);
	status=target.style.display;
	target.style.display="none";	
}
//------------------- for show hide boxes----///-----------------------------
function showhide(divid,subdivid)
	{
					
		if(document.getElementById(subdivid).style.display=='')
		{
			document.getElementById(subdivid).style.display='none';
			document.getElementById(divid).className='BtnPlus';
		}
		else
		{
			document.getElementById(subdivid).style.display='';
			document.getElementById(divid).className='BtnMinus';
		}
}