function checkMandatory(){	
			var flag = true;
			var message = 'Please fill in all mandatory fields !';
			
			if (document.checkFRM.field2.value.length==0){
			  	flag = false;
			}; 
			
			if (document.checkFRM.field3.value.length==0){
			  	flag = false;
			}; 
			
			if (document.checkFRM.field4.value.length==0){
			  	flag = false;
			}; 
		
			if (flag == false) {
				alert(message);
			};

					
			return flag;

		};