function hidediv(nomenu) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		if(nomenu==1) {
			document.getElementById('about1').style.visibility = 'hidden';
			
		}
		else if(nomenu==2) {
			document.getElementById('greensrvcs1').style.visibility = 'hidden';
			document.getElementById('greensrvcs2').style.visibility = 'hidden';
			document.getElementById('greensrvcs3').style.visibility = 'hidden';	
			document.getElementById('greensrvcs4').style.visibility = 'hidden';	
			
		}
		else if(nomenu==3) {
			document.getElementById('srvcs1').style.visibility = 'hidden';
			document.getElementById('srvcs2').style.visibility = 'hidden';
			document.getElementById('srvcs3').style.visibility = 'hidden';	
			document.getElementById('srvcs4').style.visibility = 'hidden';	
			document.getElementById('srvcs5').style.visibility = 'hidden';	
		}
		else if(nomenu==4) {
			document.getElementById('methodology1').style.visibility = 'hidden';
		}
		else if(nomenu==5) {
			document.getElementById('contact1').style.visibility = 'hidden';
		}		
		
	}
	else if (document.layers) { // Netscape 4
		if(nomenu==1) {
			document.about1.visibility = 'hidden';
		}
		else if(nomenu==2) {
			document.greensrvcs1.visibility = 'hidden';
			document.greensrvcs2.visibility = 'hidden';
			document.greensrvcs3.visibility = 'hidden';
			document.greensrvcs4.visibility = 'hidden';
			
		}	
		else if(nomenu==3) {
			document.srvcs1.visibility = 'hidden';
			document.srvcs2.visibility = 'hidden';
			document.srvcs3.visibility = 'hidden';
			document.srvcs4.visibility = 'hidden';
			document.srvcs5.visibility = 'hidden';
		}	
		else if(nomenu==4) {
			document.methodology1.visibility = 'hidden';
			
		}
		else if(nomenu==5) {
			document.contact1.visibility = 'hidden';
			
		}
		
		
	}
	else { // IE 4
		if(nomenu==1) {
			document.all.about1.style.visibility = 'hidden';
			
		}
		else if(nomenu==2) {
			document.all.greensrvcs1.style.visibility = 'hidden';
			document.all.greensrvcs2.style.visibility = 'hidden';
			document.all.greensrvcs3.style.visibility = 'hidden';
			document.all.greensrvcs4.style.visibility = 'hidden';

		}
		else if(nomenu==3) {
			document.all.srvcs1.style.visibility = 'hidden';
			document.all.srvcs2.style.visibility = 'hidden';
			document.all.srvcs3.style.visibility = 'hidden';
			document.all.srvcs4.style.visibility = 'hidden';
			document.all.srvcs5.style.visibility = 'hidden';
		}
		else if(nomenu==4) {
			document.all.methodology1.style.visibility = 'hidden';
			
		}
		else if(nomenu==5) {
			document.all.contact1.style.visibility = 'hidden';
			
		}
		
		
			
	}
}

function showdiv(nomenu) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		if(nomenu==1) {
			document.getElementById('about1').style.visibility = 'visible';
			
		}
		else if(nomenu==2) {
			document.getElementById('greensrvcs1').style.visibility = 'visible';
			document.getElementById('greensrvcs2').style.visibility = 'visible';
			document.getElementById('greensrvcs3').style.visibility = 'visible';	
			document.getElementById('greensrvcs4').style.visibility = 'visible';	

		}
		else if(nomenu==3) {
			document.getElementById('srvcs1').style.visibility = 'visible';
			document.getElementById('srvcs2').style.visibility = 'visible';
			document.getElementById('srvcs3').style.visibility = 'visible';	
			document.getElementById('srvcs4').style.visibility = 'visible';	
			document.getElementById('srvcs5').style.visibility = 'visible';	
		}
		else if(nomenu==4) {
			document.getElementById('methodology1').style.visibility = 'visible';
			
		}
		else if(nomenu==5) {
			document.getElementById('contact1').style.visibility = 'visible';
			
		}
		
		
	}
	else if (document.layers) { // Netscape 4
		if(nomenu==1) {
			document.about1.visibility = 'visible';
		}
		else if(nomenu==2) {
			document.greensrvcs1.visibility = 'visible';
			document.greensrvcs2.visibility = 'visible';
			document.greensrvcs3.visibility = 'visible';
			document.greensrvcs4.visibility = 'visible';

		}	
		else if(nomenu==3) {
			document.srvcs1.visibility = 'visible';
			document.srvcs2.visibility = 'visible';
			document.srvcs3.visibility = 'visible';
			document.srvcs4.visibility = 'visible';
			document.srvcs5.visibility = 'visible';
		}	
		else if(nomenu==4) {
			document.methodology1.visibility = 'visible';
		}
		else if(nomenu==5) {
			document.contact1.visibility = 'visible';
		}
		
		
	}
	else { // IE 4
		if(nomenu==1) {
			document.all.about1.style.visibility = 'visible';
			
		}
		else if(nomenu==2) {
			document.all.greensrvcs1.style.visibility = 'visible';
			document.all.greensrvcs2.style.visibility = 'visible';
			document.all.greensrvcs3.style.visibility = 'visible';
			document.all.greensrvcs4.style.visibility = 'visible';

		}
		else if(nomenu==3) {
			document.all.srvcs1.style.visibility = 'visible';
			document.all.srvcs2.style.visibility = 'visible';
			document.all.srvcs3.style.visibility = 'visible';
			document.all.srvcs4.style.visibility = 'visible';
			document.all.srvcs5.style.visibility = 'visible';
		}
		else if(nomenu==4) {
			document.all.methodology1.style.visibility = 'visible';
			
		}
		else if(nomenu==5) {
			document.all.contact1.style.visibility = 'visible';
			
		}
			
	}
}
function hideall()
{
		hidediv(1);
		hidediv(2);
		hidediv(3);
		hidediv(4);
		hidediv(5);
}

function actiondiv(mana){
	if(mana==1)
	{	
		hideall();
		showdiv(1);
	}
	else if(mana==2)
	{
		hideall();
		showdiv(2);
	}
	else if(mana==3)
	{
		hideall();
		showdiv(3);
	}
	else if(mana==4)
	{
		hideall();
		showdiv(4);
	}
	else if(mana==5)
	{
		hideall();
		showdiv(5);
	}

		

}