function hide(id){
	var block; 
	if (document.getElementById) { 
		block = document.getElementById(id).style; 
	} else  if (document.layers) { 
		block = document.layers[id]; 
	} else if (document.all) { 
		block = document.all[id].style; 
	} 
	if (block){
		block.visibility = 'hidden'; 
		block.position = 'absolute'; 
	}
}

function show(id){
	var block; 
	if (document.getElementById) { 
		block = document.getElementById(id).style; 
	} else  if (document.layers) { 
		block = document.layers[id]; 
	} else if (document.all) { 
		block = document.all[id].style; 
	} 
	if (block){
		block.visibility = 'visible'; 
		block.position = 'relative'; 
	}
}

	
	
	function net(){
		hide('drop1');
		hide('drop2');

/*
		document.getElementById('drop1').style.visibility='hidden';
		document.getElementById('drop2').style.visibility='hidden';
*/
    }

    function show(link,drop) {

        x1=document.getElementById('link').offsetLeft;
		x2=document.getElementById('header').offsetLeft;
		x=x1+x2-5;
        document.getElementById('drop').style.left=x;
		show('drop');

		/*
	    net();
		document.getElementById(drop).style.filter="progid:DXImageTransform.Microsoft.Blinds(duration=0.3,bands=1)";
		document.getElementById(drop).filters[0].Apply();
        x1=document.getElementById(link).offsetLeft;
		x2=document.getElementById('header').offsetLeft;
		x=x1+x2-5;
        document.getElementById(drop).style.left=x;
		document.getElementById(drop).style.visibility='visible';
		document.getElementById(drop).filters[0].Play();
		*/
	}