function userregistration()
{
	
	  at=document.frmCheckout.txtUserId.value.indexOf("@");

		           dot=document.frmCheckout.txtUserId.value.indexOf(".");

		           if(at==-1||dot==-1)

		           {

		            alert("Enter Your User Id Properly");

		            event.returnValue=false;

		            document.frmCheckout.txtUserId.focus();

		            return;
                      }
				   if(document.frmCheckout.txtUserPassword.value=="")

		          {

		           alert("Enter Your Password Properly");

		           event.returnValue=false;

		           document.txtUserPassword.focus();

		           return;

		           }
				  
				  


                          }