function showhide(show)
{    if(show=='solution1')
      {
	    document.getElementById('solution1').style.display="block";
		document.getElementById('product1').style.display="none";
	  }
	else
	  {
		 document.getElementById('product1').style.display="block";
		 document.getElementById('block4').style.display="block";
		 document.getElementById('block5').style.display="none";
		 document.getElementById('block6').style.display="none";
		 document.getElementById('solution1').style.display="none";

	  }
}


function showblock(id)
{
	
	if(id=='block11')
	{document.getElementById('block1').style.display="block";
     document.getElementById('block2').style.display="none";
	 document.getElementById('block3').style.display="none";
	}
	else if(id=='block12')
	{document.getElementById('block1').style.display="none";
     document.getElementById('block2').style.display="block";
	 document.getElementById('block3').style.display="none";
		
		}
		
else
{document.getElementById('block1').style.display="none";
     document.getElementById('block2').style.display="none";
	 document.getElementById('block3').style.display="block";
}
}


function showblock1(id1)
{
	
	if(id1=='block21')
	{document.getElementById('block4').style.display="block";
     document.getElementById('block5').style.display="none";
	 document.getElementById('block6').style.display="none";
	}
	else if(id1=='block22')
	{document.getElementById('block4').style.display="none";
     document.getElementById('block5').style.display="block";
	 document.getElementById('block6').style.display="none";
		
		}
		
else
{document.getElementById('block4').style.display="none";
     document.getElementById('block5').style.display="none";
	 document.getElementById('block6').style.display="block";
}
}