Require one of two fields

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Require one of two fields	1/17/2008 7:59:52 PM
PHPRunner General questions
C Christopher author I have a registration form with about 30 fields, half of which are required. Standard stuff all done with the visual editor. I have a special section that uses a three step dependent drop down for the user to select a school. There is a possibility that their school may not be in the list, in which case I need them to enter it in a field. My problem comes with validating that one or the other of these steps are completed. I don't know how to do an either A or B must have a value, and to further complicate things, I don't want to different kinds of validation confusing the user (the regular ones and something special for this?). Can anybody help?


J	Jane 1/21/2008
	Hi, you can validation dynamically adding some JavaScritp code on your page on the Visual Editor tab. Here is a sample: {literal}<script> document.forms.editform.value_FieldName.onchange=function() { if(this.options[this.selectedIndex].value=='your value') { define('value_FieldName','IsRequired','FieldName: '); } else { undefine('value_FieldName'); } } function undefine(n) { if (document.editform != null) { for (i = 0; i < checkObjects.length; i++) { if (checkObjects[i].form.name==n) checkObjects.splice(i,1); } } } </script>{/literal}