js表单验证实例：js提交表单与设置表单值

<input type="button" id="btnUdf7" name="btnUdf7" style="<%=showUdf7Flag&&showUdfBtn7Flag? "":"display:none;"%>" value=". . ." class="btnLook" style="" onClick="openLookupGen(arrSetAWeight, arrGetAWeight ,'<%=EusUtil.getPage("lookup.generic.bucode.s")%>?udfIndex=7&codeLabel='+encodeURIComponent(getUdfStr('7')), '', 640, 480, 'yes')">
var arrSetAWeight = new Array();
var arrGetAWeight = new Array();
var arrAWeightParam = new Array();
arrSetAWeight[0] = "document.ImpDeclForm.udfValue7";
arrGetAWeight[0] = "document.BuCodeSearch.codeField";
function openLookupGen(arrSetField,arrGetField,strPage,arrParam,width,height,scroll,left,top)
{
var browserType;
wx = 640; wy = 480;
var x, y;
var x1 = parseInt(left);
var y1 = parseInt(top);
if (isNaN(x1))
{
x = (screen.width - wx)/2;
}
else
{
x = x1;
}
if (isNaN(y1))
{
y = (screen.height - wy)/2;
}
else
{
y = y1;
}
str = navigator.appName.toUpperCase();
if (str.indexOf("NETSCAPE") >= 0)
{
browserType = "NN";
}
else
{
browserType = "IE";
}
var strURL = "";
if (strPage.indexOf("?") >= 0)
strURL = strPage + "&";
else
strURL = strPage + "?";
for (var i=0; i < arrSetField.length; i++){
if (i != 0) strURL = strURL + "&";
strURL = strURL + "setField" + i + "=" + arrSetField[i];
strURL = strURL + "&getField" + i + "=" + arrGetField[i];
}
if(arrSetField.length == 0)
strURL = strURL + "noOfField=" + arrSetField.length ;
else
strURL = strURL + "&noOfField=" + arrSetField.length ;
for (var i=0; i < arrParam.length; i++){
strURL = strURL + "&" + arrParam[i];
}
//Modified by Minjie Zhu on 2007-01-15
var name="lookup";
if(strPage=="LookupProduct"){
name="";
}
if (browserType=="NN")
{
//add scrollbars=yes by shuang at 2006-12-20
var win = window.open(strURL, name, "width="+width+",height="+height+",resizable=yes,scrollbars=yes, status=no, menubar=no, toolbar=no,screenX="+x+",screenY="+y);
}
else
{
//add scrollbars=yes by shuang at 2006-12-20
var win = window.open(strURL, name, "width="+width+",height="+height+",resizable=yes, status=no,scrollbars=yes, menubar=no, toolbar=no,left="+x+",top="+y);
}
}
function submitForm(fm,pageNumValue){
fm.pageNum.value=pageNumValue;
fm.submit();
}
function CopyValueToTarget(str)
{
document.BuCodeSearch.codeField.value = str;
setValue();
return true;
}
function setValue(){
var arrSetField = new Array();
var arrGetField = new Array();
var setObj, getObj;
var strVal, strGetType, strSetType;
<% for (int i=0; i < noOfField; i++){
out.println("arrSetField[" + i + "] = 'opener." + request.getParameter("setField" + i) + "';");
out.println("arrGetField[" + i + "] = '" + request.getParameter("getField" + i) + "';");
} // www.jb200.com
%>
for (var i = 0; i < <%=noOfField%>; i++){
setObj = eval(arrSetField[i]);
getObj = eval(arrGetField[i]);
if (setObj == null)
myAlert("SetObj Null");
if (setObj.type != null)
strSetType = setObj.type;
else
strSetType = setObj[0].type;
if (getObj == null)
myAlert("GetObj Null");
if (getObj.type != null)
strGetType = getObj.type;
else
strGetType = getObj[0].type;
//Getting values from LookUp form
switch (strGetType){
case "radio":
// Get value from lookup radio button
for (var j = 0; j < getObj.length; j++){
if (getObj[j].checked == "1"){
strVal = getObj[j].value;
}
}
break;
case "checkbox":
// Get value from lookup radio button
if (getObj.checked == true)
strVal = getObj.value;
else
strVal = "";
break;
case "select-one":
strVal = getObj.options[getObj.selectedIndex].text;
break;
default:
strVal = getObj.value;
break;
}
//Setting values into Parent form
switch (strSetType) {
case "radio":
// Set value for parent radio button
for (var j = 0; j < setObj.length; j++){
if (setObj[j].value.toUpperCase() == strVal.toUpperCase())
setObj[j].checked = true;
else
setObj[j].checked = false;
}
break;
case "checkbox":
//alert (setObj.value);
//alert (strVal);
if (getObj.type == "checkbox")
setObj.checked = getObj.checked;
else if (strVal.toUpperCase() == setObj.value.toUpperCase())
setObj.checked = true;
else
setObj.checked = false;
break;
case "select-one":
//myAlert(setObj.length);
for (var j = 0; j < setObj.length; j++){
//myAlert(setObj.options[j].text.toUpperCase());
if (setObj.options[j].text.toUpperCase() == strVal.toUpperCase())
setObj.options[j].selected = true;
//else
// setObj.options[j].selected = false;
}
break;
default:
setObj.value = strVal;
break;
}
}
opener.focus;
self.close();
}

<script language="javascript">
function f_submit(){
if(document.f.title.value=="")
{
alert("Sorry, 信息沒有輸入")
document.f.title.focus()
return false
}
else if(document.frmAddLink.content.value=="")
{
alert("Sorry, 說明沒有輸入")
document.frmAddLink.content.focus()
return false
}
}
</script>