function checkstatus()
				{
					var a =	0;
					var checks = document.getElementsByName('comparevalue[]');
					var length = document.getElementsByName('comparevalue[]').length;
					for ( i=0; i < length; i++ ) {
					if ( checks[i].checked == true ) {
								a++;
      					}
					}
					if(a < 2)
					{
						document.getElementById("showmessage").style.display = "block";
						document.getElementById("showmessage1").style.display = "block";
						return false;
					
					}
					if(a > 4)
					{
						document.getElementById("showmessage2").style.display = "block";
						document.getElementById("showmessage3").style.display = "block";
						return false;
					
					}
					
					if(a >= 2 && a <= 4)
					{
					
						document.compareform.submit();
					
					}

				}
				
				function changepstatus()
				{
					document.getElementById("showmessage").style.display = "none";
					document.getElementById("showmessage1").style.display = "none";				
				}
				function changepstatus1()
				{
					document.getElementById("showmessage2").style.display = "none";
					document.getElementById("showmessage3").style.display = "none";				
				}