我写的通用控件校验函数
作者:短笛 [文章出自: www.phpx.com]
//通过控件名字得到object
function MM_findObj_(n, d)
{
var p,i,x;
if(!d)
d=document;
if((p=n.indexOf("?"))>0&&parent.frames.length)
{
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
}
if( !(x=d[n]) && d.all )
x=d.all[n];
for (i=0;!x&&i<d.forms.length;i++)
x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++)
x=MM_findObj_(n,d.layers[i].document);
return x;
}
//控件数据校验
function validate()
{
var i,myValue1,myValue2,myValue3,myValue4,myValue5,errors='';
var val,val1;
var controlAttribute,putInfo1,putInfo2;
var args = validate.arguments;
var checkMailAddress = /w@w{3,}.w{3,}/; //创建正则表达式校验邮件地址对象
var checkInteger = /^[+-]?d+$/; //创建正则表达式校验整数对象
var checkFloat = /^[+-]?d+(.d+)?$/; //创建正则表达式校验浮点数对象
for (i=0; i<(args.length-2); i+=3)
{
controlAttribute = args[i];
putInfo1 = args[i+1];
putInfo2 = args[i+2];
if( controlAttribute.indexOf('D')>=0 || controlAttribute=='Y' )
val = MM_findObj_( putInfo1+"year" );
else
val = MM_findObj_( putInfo1 );
//如果控件不存在，直接跳过
if( !val )
continue;
myValue1 = val.value;
//对非空的处理
if( controlAttribute.indexOf('R') >= 0 )
{
if( controlAttribute.indexOf('D8')>=0 )
{
val = MM_findObj_( putInfo1+'year' );
myValue1 = MM_findObj_( putInfo1+'year' ).value;
myValue2 = MM_findObj_( putInfo1+'monthfrom' ).value;
myValue3 = MM_findObj_( putInfo1+'monthto' ).value;
if( myValue1 == '' || myValue2 == '' || myValue3 == '' )
{
errors = putInfo2+'不能为空';
break;
}
}
else if( controlAttribute.indexOf('D')>=0 )
{
val = MM_findObj_( putInfo1+'year' );
myValue1 = MM_findObj_( putInfo1+'year' ).value;
myValue2 = MM_findObj_( putInfo1+'month' ).value;
val1 = MM_findObj_( putInfo1+'day' );
if( val1 )
myValue3 = MM_findObj_( putInfo1+'day' ).value;
else
myValue3 = MM_findObj_( putInfo1+'date' ).value;
if( myValue1 == '' || myValue2 == '' || myValue3 == '' )
{
errors = putInfo2+'不能为空';
break;
}
}
else if( controlAttribute.indexOf('S')>=0 )
{
val = MM_findObj_( putInfo1 );
myValue1 = MM_findObj_( putInfo1 ).value;
if( myValue1 == '#' )
{
errors = '请选择'+putInfo2;
break;
}
}
else
{
val = MM_findObj_( putInfo1 );
myValue1 = MM_findObj_( putInfo1 ).value;
if( myValue1 == '' )
{
errors = putInfo2+'不能为空';
break;
}
}
}
//对有效期的处理
if( controlAttribute=='Y' )
{
val = MM_findObj_( putInfo1+'year' );
val1 = MM_findObj_( putInfo1+'day' );
if( val1 )
{
myValue1 = new Date (MM_findObj_( putInfo1+"year" ).value , MM_findObj_( putInfo1+"month" ).value , MM_findObj_( putInfo1+"day" ).value);
myValue2 = new Date (MM_findObj_( putInfo2+"year" ).value , MM_findObj_( putInfo2+"month" ).value , MM_findObj_( putInfo2+"day" ).value);
}
else
{
myValue1 = new Date (MM_findObj_( putInfo1+"year" ).value , MM_findObj_( putInfo1+"month" ).value , MM_findObj_( putInfo1+"date" ).value);
myValue2 = new Date (MM_findObj_( putInfo2+"year" ).value , MM_findObj_( putInfo2+"month" ).value , MM_findObj_( putInfo2+"date" ).value);
}
if( myValue1 > myValue2 )
{
errors = '有效期结束时间不能大于开始时间';
break;
}
}
//对其他属性的处理
if( myValue1 != '' )
{
if ( controlAttribute.indexOf( 'I' ) >= 0 )
{
if( !checkInteger.test(myValue1) )
{
errors = putInfo2+'只能是整数';
break;
}
}
else if( controlAttribute.indexOf('F') >= 0 )
{
if( !checkFloat.test(myValue1) )
{
errors = putInfo2+'只能是实数';
break;
}
}
else if( controlAttribute.indexOf('D8') >= 0 )
{
myValue4 = new Date ( myValue1 , MM_findObj_( putInfo1+'monthfrom' ).value ,'01');
myValue5 = new Date ( myValue1 , MM_findObj_( putInfo1+'monthto' ).value ,'01');
if( myValue1.length !=4 || !checkDateTime( myValue1 +'-'+MM_findObj_( putInfo1+'monthfrom' ).value+'-'+'01' ) || !checkDateTime( myValue1 +'-'+MM_findObj_( putInfo1+'monthto' ).value+'-'+'01' ))
{
errors = putInfo2+'时间不正确';
break;
}
else if( myValue4 > myValue5 )
{
errors = putInfo2+'结束时间大于开始时间';
break;
}
else if ( myValue1<1900 || myValue1>2100 )
{
errors = putInfo2+'不能小于1900年，大于2100年';
break;
}
}
else if( controlAttribute.indexOf('D')>=0 )
{
val1 = MM_findObj_( putInfo1+'day' );
myValue4 = '';
if( val1 )
myValue4 = MM_findObj_( putInfo1+'day' ).value;
else
myValue4 = MM_findObj_( putInfo1+'date' ).value;
if( myValue1.length!=4 || !checkDateTime( myValue1+'-'+MM_findObj_( putInfo1+'month' ).value+'-'+myValue4 ) )
{
errors = putInfo2+'时间不正确';
break;
}
else if ( myValue1<1900 || myValue1>2100 )
{
errors = putInfo2+'不能小于1900年，大于2100年';
break;
}
}
else if( controlAttribute.indexOf('E')>=0 )
{
if ( !checkMailAddress.test(myValue1) )
{
errors = putInfo2+'不是邮件地址';
break;
}
}
else if( controlAttribute.indexOf('N')>=0 )
{
if ( !checkInteger.test(myValue1) )
{
errors = putInfo2+'不正确';
break;
}
else if ( myValue1<1900 || myValue1>2100 )
{
errors = putInfo2+'不能小于1900年，大于2100年';
break;
}
}
}
//长度判断
if( controlAttribute.indexOf('L|') >= 0 && controlAttribute.indexOf('L|') < controlAttribute.indexOf('-') )
{
val = MM_findObj_( putInfo1 );
myValue4 = controlAttribute.substring(controlAttribute.indexOf("L|")+2,controlAttribute.indexOf('-'));
myValue5 = controlAttribute.substring(controlAttribute.indexOf("-")+1,controlAttribute.length);
if( myValue5.indexOf('|') < 0 )
break;
myValue5 = myValue5.substring(0,myValue5.indexOf('|'));
if ( myValue1.length < myValue4 || myValue1.length > myValue5 )
{
errors = putInfo2+'长度不正确';
break;
}
}
}
if ( errors != '' )
{
alert(errors);
val.focus();
}
document.returnValue = (errors == '');
}
function checkDateTime( str )
{
var reg = /^(d{1,4})-(d{1,2})-(d{1,2})$/; //创建正则表达式校验时间对象
var r = str.match(reg);
if(r==null)
return false;
else
{
var d= new Date(r[1], --r[2],r[3]);
if(d.getFullYear()!=r[1])
return false;
if(d.getMonth()!=r[2])
return false;
if(d.getDate()!=r[3])
return false;
}
return true;
}
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文章加入时间: 2004-11-19 10:37:26 责任编辑: w9 (3056 人次查阅)
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