var checkSubmitFlg = false; 
	 
	 function checkSubmit() { 
		 if (checkSubmitFlg == true) { 
		 	return false; 
		 } 
		 checkSubmitFlg = true; 
		 return true; 
	 } 
	 
	 
	function doSubmit(formName,operation){
		var frm= eval("document."+formName);
		frm.operation.value=operation;
		frm.method="post";
		
		if(checkSubmit()){
			frm.submit();
		}
	}