function OnChange(dropdown)
        {
            var myindex  = dropdown.selectedIndex;
			var SelValue = dropdown.options[myindex].value
      		
			var one_t = document.getElementById("pitch_1_title");
			var two_t = document.getElementById("pitch_2_title");
			var three_t = document.getElementById("pitch_3_title");
			var four_t = document.getElementById("pitch_4_title");

			var left_t = document.getElementById("pitch_1_title_left");
			var right_t = document.getElementById("pitch_2_title_right");
			var front_t = document.getElementById("pitch_3_title_front");
			var rear_t = document.getElementById("pitch_4_title_rear");
			
			var one1 = document.getElementById("pitch_5");
			var two = document.getElementById("pitch_2");
			var three = document.getElementById("pitch_3");
			var four = document.getElementById("pitch_4");			

			one_t.style.display = 'none';
			two_t.style.display = 'none';
			three_t.style.display = 'none';
			four_t.style.display = 'none';
			one1.style.display = 'none';
			two.style.display = 'none';
			three.style.display = 'none';
			four.style.display = 'none';
			left_t.style.display = 'none';
			right_t.style.display = 'none';
			front_t.style.display = 'none';			
			rear_t.style.display = 'none';

			if(SelValue == "SR")
				{
					one_t.style.display = 'block';
					two_t.style.display = 'block';	
					one1.style.display = 'block';
					two.style.display = 'block';					
				}

			if(SelValue == "RHR3")
				{
					left_t.style.display = 'block';
					right_t.style.display = 'block';
					front_t.style.display = 'block';
					one1.style.display = 'block';
					two.style.display = 'block';	
					three.style.display = 'block';
				}

			if(SelValue == "RHR4")
				{
					left_t.style.display = 'block';
					right_t.style.display = 'block';
					front_t.style.display = 'block';
					rear_t.style.display = 'block';
					one1.style.display = 'block';
					two.style.display = 'block';	
					three.style.display = 'block';
					four.style.display = 'block';
				}
				
			if(SelValue == "CUST")
				{
					left_t.style.display = 'block';
					right_t.style.display = 'block';
					front_t.style.display = 'block';
					rear_t.style.display = 'block';
					one1.style.display = 'block';
					two.style.display = 'block';	
					three.style.display = 'block';
					four.style.display = 'block';
				}				
        }