function clearForm(frm){
		var els=document.getElementById(frm).elements;
		var el;
		var str="";
		for(var i =0;i<els.length;i++){
			el=els[i];
			str += "el.type=='"+els[i].type+"' || ";
			if(el.type=='hidden' || el.type=='text' || el.type=='textarea' || el.type=='file' || el.type=='select-one' || el.type=='select-multiple' ){
				els[i].value="";
			}					
		}			
	}
	
	function checkBlank(frm){
				var els=document.getElementById(frm).elements;
				var el;
				var str="";
				var result=false;
				for(var i =0;i<els.length;i++){
					el=els[i];
					str += "el.type=='"+els[i].type+"' || ";
					if(el.type=='text' || el.type=='textarea' || el.type=='file' || el.type=='select-one' || el.type=='select-multiple' ){
						result = result || (els[i].value!="");
					}					
				}
				return result;			
	}
	
	function validateByRule( input, rule ){
		if(input == null)return false;
		var regExp = new RegExp(rule);
		return regExp.test(input);
	}
	
	function check_nonNegativeInt(p){
		return validateByRule(p , "^[0-9]+$");
	}
	
	function check_positvieInt(p){
		if( !validateByRule(p , "^[0-9]+$") )return false;
		if( validateByRule(p , "^[0]+$") )return false;
		return true;
	}
	
	function check_int(p){
		if( validateByRule(p , "^[0-9]+$") )return true;
		if( validateByRule(p , "^\-[0-9]+$") )return true;
		return false;
	}
	
	function check_date(p){
		if(! validateByRule(p , "^[1-9][0-9][0-9][0-9]\-[0-9]?[0-9]\-[0-9]?[0-9]$") )return false;
		return true;
	}
	
	function check_nonNegativeFloat(p){
		if (p == "" || p == ".")return false;
		if( validateByRule(p , "^[0-9]*[\.]?[0-9]*$") )return true;
		return false; 	
	}
	
	function check_positiveFloat(p){
		if( !validateByRule(p , "^[0-9]*[\.]?[0-9]*$") )return false;
		if( validateByRule(p , "^[0]*[\.]?[0]*$") )return false;
		return true;			
	}		
	
	function check_float(p){
		if( p == "" || p == "." || p == "-" || p == "-." )return false;
		if( validateByRule(p , "^[0-9]*[\.]?[0-9]*$") )return true;
		if( validateByRule(p , "^\-[0-9]*[\.]?[0-9]*$") )return true;
		return false;
	}
	
	function checkLength(fieldNameArray, fieldNameDisplayArray, minLength, maxLength){
		var tmp = "";
		var tmp1 = "";
		var firstProblemField = "";
		
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				var val = trim(obj.value);
				if(minLength != -1 && val.length < minLength){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					
					if(fieldNameDisplayArray == null){
						tmp = "\u8BE5\u57DF";						
					}else{
						if(tmp == ""){
							tmp = fieldNameDisplayArray[i];
						}else{
							tmp = tmp + " " + fieldNameDisplayArray[i];
						}
					}
				}
				obj.value = val;										
			}		
		}
		
		if(tmp != ""){
			alert(tmp + " \u4E0D\u80FD\u4E3A\u7A7A .");
			document.getElementById(firstProblemField).focus();
			return false;
		}
		
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				var val = trim(obj.value);
				if(maxLength != -1 && val.length > maxLength){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					if(fieldNameDisplayArray == null){
						tmp1 = "\u8BE5\u57DF";
					}else{
						if(tmp1 == ""){
							tmp1 = fieldNameDisplayArray[i];
						}else{
							tmp1 = tmp1 + " " + fieldNameDisplayArray[i];
						}
					}
				}						
			}		
		}
		
		if(tmp1 != ""){
			alert(tmp1 + " \u957F\u5EA6\u8D85\u8FC7\u9650\u5236 .");
			document.getElementById(firstProblemField).focus();
			return false;
		}
		
		return true;
	}
	
	function checkNum(fieldNameArray, fieldNameDisplayArray, minVal, maxVal){
		var tmp = "";
		var tmp1 = "";
		var firstProblemField = "";
		
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				if(trim(obj.value) == ""){
					continue;
				}
			
				var val = parseFloat(obj.value);
				
				if(!isNaN(val) && val < minVal){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					
					if(fieldNameDisplayArray == null){
						tmp = "\u8BE5\u57DF";						
					}else{
						if(tmp == ""){
							tmp = fieldNameDisplayArray[i];
						}else{
							tmp = tmp + " " + fieldNameDisplayArray[i];
						}
					}
				}										
			}		
		}
		
		if(tmp != ""){
			alert(tmp + " \u6570\u503C\u592A\u5C0F .");
			document.getElementById(firstProblemField).focus();
			return false;
		}
		
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				if(trim(obj.value) == ""){
					continue;
				}
			
				var val = parseFloat(obj.value);
								
				if(!isNaN(val) && val > maxVal){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					
					if(fieldNameDisplayArray == null){
						tmp1 = "\u8BE5\u57DF";						
					}else{
						if(tmp1 == ""){
							tmp1 = fieldNameDisplayArray[i];							
						}else{
							tmp1 = tmp1 + " " + fieldNameDisplayArray[i];
						}
					}
				}						
			}		
		}
		
		if(tmp1 != ""){
			alert(tmp1 + " \u6570\u503C\u592A\u5927 .");
			document.getElementById(firstProblemField).focus();
			return false;
		}
		
		return true;
	}
	
	function checkNonNegativeFloat(fieldNameArray, fieldNameDisplayArray){
		var tmp = "";
		var firstProblemField = "";
	
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				if(trim(obj.value) == ""){
					continue;
				}
			
				if(!check_nonNegativeFloat(obj.value)){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					
					if(fieldNameDisplayArray == null){
						tmp = "\u8BE5\u57DF";						
					}else{
						if(tmp == ""){
							tmp = fieldNameDisplayArray[i];
						}else{
							tmp = tmp + " " + fieldNameDisplayArray[i];
						}
					}
				}										
			}		
		}
		
		if(tmp != ""){
			alert(tmp + " \u5FC5\u987B\u4E3A\u975E\u8D1F\u5C0F\u6570 .");
			document.getElementById(firstProblemField).focus();
			return false;
		}		
		
		return true;
	}
	
	function checkNonNegativeInt(fieldNameArray, fieldNameDisplayArray){
		var tmp = "";
		var firstProblemField = "";
	
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				if(trim(obj.value) == ""){
					continue;
				}
			
				if(!check_nonNegativeInt(obj.value)){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					
					if(fieldNameDisplayArray == null){
						tmp = "\u8BE5\u57DF";						
					}else{
						if(tmp == ""){
							tmp = fieldNameDisplayArray[i];
						}else{
							tmp = tmp + " " + fieldNameDisplayArray[i];
						}
					}
				}										
			}		
		}
		
		if(tmp != ""){
			alert(tmp + " \u5FC5\u987B\u4E3A\u975E\u8D1F\u6574\u6570 .");
			document.getElementById(firstProblemField).focus();
			return false;
		}		
		
		return true;
	}
	
	function checkFloat(fieldNameArray, fieldNameDisplayArray){
		var tmp = "";
		var firstProblemField = "";
	
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				if(trim(obj.value) == ""){
					continue;
				}
			
				if(!check_float(obj.value)){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					
					if(fieldNameDisplayArray == null){
						tmp = "\u8BE5\u57DF";						
					}else{
						if(tmp == ""){
							tmp = fieldNameDisplayArray[i];
						}else{
							tmp = tmp + " " + fieldNameDisplayArray[i];
						}
					}
				}										
			}		
		}
		
		if(tmp != ""){
			alert(tmp + " \u5FC5\u987B\u4E3A\u5C0F\u6570 .");
			document.getElementById(firstProblemField).focus();
			return false;
		}		
		
		return true;
	}
	
	function checkInt(fieldNameArray, fieldNameDisplayArray){
		var tmp = "";
		var firstProblemField = "";
	
		for(var i = 0 ; i < fieldNameArray.length ; i = i + 1){
			var obj = document.getElementById(fieldNameArray[i]);
			
			if(obj != null && obj.type == "text"){
				if(trim(obj.value) == ""){
					continue;
				}
			
				if(!check_int(obj.value)){
					if(firstProblemField == ""){
						firstProblemField = fieldNameArray[i];
					}
					
					if(fieldNameDisplayArray == null){
						tmp = "\u8BE5\u57DF";						
					}else{
						if(tmp == ""){
							tmp = fieldNameDisplayArray[i];
						}else{
							tmp = tmp + " " + fieldNameDisplayArray[i];
						}
					}
				}										
			}		
		}
		
		if(tmp != ""){
			alert(tmp + " \u5FC5\u987B\u4E3A\u6574\u6570 .");
			document.getElementById(firstProblemField).focus();
			return false;
		}		
		
		return true;
	}
	
		function checkForm(formName){
			var els = document.getElementById(formName).elements;
			for(var i = 0 ; i < els.length ; i++){
				var el = els[i];
				var cnname = '\u6B64\u9879';
				if(el.cnname + '' != 'undefined'){
					cnname = el.cnname;
				}
				
				if(el.type == 'text'){
					el.value = trim(el.value);
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
					if(el.datatype + '' != 'undefined' && el.datatype == 'float'){
						if( el.value != ''){
							if(!check_float(el.value)){
								alert(cnname + '\u5FC5\u987B\u4E3A\u6570\u5B57 .');
								el.focus();
								return false;
							}
							var limit = '';
							if(el.minnum + '' != 'undefined' && el.maxnum + '' != 'undefined'){
								limit = cnname + '\u5FC5\u987B\u5728 ' + el.minnum + '\uFF5E' + el.maxnum + ' \u4E4B\u95F4 .';
							}else if(el.minnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5C0F\u4E8E ' + el.minnum + ' .';
							}else if(el.maxnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5927\u4E8E ' + el.maxnum + ' .';
							}
							if(el.minnum + '' != 'undefined' && parseFloat(el.value) < parseFloat(el.minnum)){
								alert(limit);
								el.focus();
								return false;
							}
							if(el.maxnum + '' != 'undefined' && parseFloat(el.value) > parseFloat(el.maxnum)){
								alert(limit);
								el.focus();
								return false;
							}	
						}
														
					}
					if(el.datatype + '' != 'undefined' && el.datatype == 'int'){
						if( el.value != ''){
							if(!check_int(el.value)){
								alert(cnname + '\u5FC5\u987B\u4E3A\u6574\u6570 .');
								el.focus();
								return false;
							}
							var limit = '';
							if(el.minnum + '' != 'undefined' && el.maxnum + '' != 'undefined'){
								limit = cnname + '\u5FC5\u987B\u5728 ' + el.minnum + '\uFF5E' + el.maxnum + ' \u4E4B\u95F4 .';
							}else if(el.minnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5C0F\u4E8E ' + el.minnum + ' .';
							}else if(el.maxnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5927\u4E8E ' + el.maxnum + ' .';
							}
							if(el.minnum + '' != 'undefined' && parseInt(el.value) < parseInt(el.minnum)){
								alert(limit);
								el.focus();
								return false;
							}
							if(el.maxnum + '' != 'undefined' && parseInt(el.value) > parseInt(el.maxnum)){
								alert(limit);
								el.focus();
								return false;
							}
						}													
					}
					if(el.datatype + '' != 'undefined' && el.datatype == 'date' && el.value != '' && !check_date(el.value)){
						alert(cnname + '\u5FC5\u987B\u4E3A yyyy-mm-dd \u7684\u65E5\u671F\u683C\u5F0F  .');
						el.focus();
						return false;							
					}
				
				}
				if(el.type == 'textarea'){
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'password'){
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'hidden'){
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'select-one'){
					if(el.nullable == 'false' && getSelectCheckedValue(el.name) == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'select-multiple'){
					if(el.nullable == 'false' && getSelectCheckedValue(el.name) == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
			}
			return true;			
		}
	
		function checkFields(fieldNameArray){
			
			for(var i = 0 ; i < fieldNameArray.length ; i++){
				var el = document.getElementById(fieldNameArray[i]);
				var cnname = '\u6B64\u9879';
				if(el.cnname + '' != 'undefined'){
					cnname = el.cnname;
				}
				
				if(el.type == 'text'){
					el.value = trim(el.value);
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
					if(el.datatype + '' != 'undefined' && el.datatype == 'float'){
						if( el.value != ''){
							if(!check_float(el.value)){
								alert(cnname + '\u5FC5\u987B\u4E3A\u6570\u5B57 .');
								el.focus();
								return false;
							}
							var limit = '';
							if(el.minnum + '' != 'undefined' && el.maxnum + '' != 'undefined'){
								limit = cnname + '\u5FC5\u987B\u5728 ' + el.minnum + '\uFF5E' + el.maxnum + ' \u4E4B\u95F4 .';
							}else if(el.minnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5C0F\u4E8E ' + el.minnum + ' .';
							}else if(el.maxnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5927\u4E8E ' + el.maxnum + ' .';
							}
							if(el.minnum + '' != 'undefined' && parseFloat(el.value) < parseFloat(el.minnum)){
								alert(limit);
								el.focus();
								return false;
							}
							if(el.maxnum + '' != 'undefined' && parseFloat(el.value) > parseFloat(el.maxnum)){
								alert(limit);
								el.focus();
								return false;
							}	
						}
														
					}
					if(el.datatype + '' != 'undefined' && el.datatype == 'int'){
						if( el.value != ''){
							if(!check_int(el.value)){
								alert(cnname + '\u5FC5\u987B\u4E3A\u6574\u6570 .');
								el.focus();
								return false;
							}
							var limit = '';
							if(el.minnum + '' != 'undefined' && el.maxnum + '' != 'undefined'){
								limit = cnname + '\u5FC5\u987B\u5728 ' + el.minnum + '\uFF5E' + el.maxnum + ' \u4E4B\u95F4 .';
							}else if(el.minnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5C0F\u4E8E ' + el.minnum + ' .';
							}else if(el.maxnum + '' != 'undefined'){
								limit = cnname + '\u4E0D\u80FD\u5927\u4E8E ' + el.maxnum + ' .';
							}
							if(el.minnum + '' != 'undefined' && parseInt(el.value) < parseInt(el.minnum)){
								alert(limit);
								el.focus();
								return false;
							}
							if(el.maxnum + '' != 'undefined' && parseInt(el.value) > parseInt(el.maxnum)){
								alert(limit);
								el.focus();
								return false;
							}
						}													
					}
					if(el.datatype + '' != 'undefined' && el.datatype == 'date' && el.value != '' && !check_date(el.value)){
						alert(cnname + '\u5FC5\u987B\u4E3A yyyy-mm-dd \u7684\u65E5\u671F\u683C\u5F0F  .');
						el.focus();
						return false;							
					}
				
				}
				if(el.type == 'textarea'){
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'password'){
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'hidden'){
					if(el.nullable + '' != 'undefined' && el.nullable == 'false' && el.value == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'select-one'){
					if(el.nullable == 'false' && getSelectCheckedValue(el.name) == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
				if(el.type == 'select-multiple'){
					if(el.nullable == 'false' && getSelectCheckedValue(el.name) == ''){
						alert(cnname + '\u4E0D\u80FD\u4E3A\u7A7A .');
						el.focus();
						return false;
					}
				}
			}
			return true;
				
		}