// JavaScript Document
function  checklogin(){
  var checkpass=true;
  if(document.getElementById("userName1").value==""){
	 document.getElementById("im1").style.display="block";
	 document.getElementById("im2").style.display="none";
	 document.getElementById("im3").style.display="none";
	 document.getElementById("im4").style.display="none";
	 document.getElementById("im5").style.display="none";
	 checkpass=false;
  }
  else{
	  if(document.getElementById("userPassword1").value==""){
		 document.getElementById("im1").style.display="none";
		 document.getElementById("im2").style.display="block";
		 document.getElementById("im3").style.display="none";
		 document.getElementById("im4").style.display="none";
	     document.getElementById("im5").style.display="none";
		 checkpass=false;
	  }
	  else if(document.getElementById("Rand1").value==""){
		 document.getElementById("im1").style.display="none";
		 document.getElementById("im2").style.display="none";
		 document.getElementById("im3").style.display="block";
		 document.getElementById("im4").style.display="none";
	     document.getElementById("im5").style.display="none";
		 checkpass=false;
	  }
  }
  return checkpass;
}