var http_request;
      	 var htmlForm;
           function checkCustomerExist(formName) {
        	   htmlForm = formName ? document[formName] : document.frmDeposit;
        	   
              var userName=htmlForm.loginname.value;
			  var firstname=htmlForm.currFirst.value;
			  var dbtype_group=htmlForm.dbtype;
			  var dbtype=null;
			 for(var i=0;i<dbtype_group.length;i++)   
			 {   
			  if(dbtype_group[i].checked)   
			  {   
			   	dbtype= dbtype_group[i].value;
			  }   
			 }  
			  if(dbtype == null) {
				  dbtype = htmlForm.dbtype.value;
			  }
              if (htmlForm.currency.value=="") 
              {
					var select_curr=htmlForm.select_curr.value;
					alert(select_curr);
					htmlForm.currency.focus();
              }
              else if (htmlForm.loginname.value==""||htmlForm.loginname.value.length<5||htmlForm.loginname.value.length>8||isSsnString(htmlForm.loginname.value)==false) 
              {
					var need_loginname=htmlForm.need_loginname.value;
					alert(need_loginname);
					htmlForm.loginname.focus();
              }			  
              else{
					 if (window.XMLHttpRequest)
					 { // if Mozilla, Safari etc
					   http_request=new XMLHttpRequest()
					   if (http_request.overrideMimeType)
						 http_request.overrideMimeType('text/xml');
					  }
					  else if (window.ActiveXObject)
					  { // if IE
						try {
						  http_request=new ActiveXObject("Msxml2.XMLHTTP");
						}
						catch (e){
						  try{
							 http_request=new ActiveXObject("Microsoft.XMLHTTP");
						  }
						  catch (e){}
						}
					  }
					 http_request.onreadystatechange=process;
					 http_request.open("GET","../CheckCustomerExist.jsp?userName=m"+firstname+userName+"&dbtype="+dbtype);
					 http_request.send(null); 
					 
              }     

          }
           
           
          
          function process()
       {
             if(http_request.readyState==4)
             {
               var chkResult = http_request.responseText;
               
			   var can = htmlForm.check_success.value;
               var cannot = htmlForm.check_false.value; 
			   
			   var userName=htmlForm.loginname.value;
			   var firstname=htmlForm.currFirst.value;
			   var LoginName="m"+firstname+userName+",";
			   
               if(chkResult==1) {    
                	alert(LoginName+cannot);
               }
               else {
                 	alert(LoginName+can);
               }
            
            }
          }