Programming Forums > Web Development and Design > JavaScript and Client-Side Browser Scripting

fmontoya · Apr 4th, 2005, 11:45 AM

I am trying to use a required form script for this web page:
http://www.lansce.lanl.gov/reg_form.html

I cant seem to get it to work. I'm not sure if I need to put it somewhere different in my source code. It is located at the bottom prior to the end of the body. Can someone please look at source and give advice. Thanks.

Pizentios · Apr 4th, 2005, 11:56 AM

this is what i use:

(Toggle Plain Text)

 function checkrequired(which) 
 {
 	var pass=true;
 	if (document.images) 
 	{
 		for (i=0;i<which.length;i++) 
 		{
 			var tempobj=which.elements[i];
 			if (tempobj.name.substring(0,8)=="required") 
 			{
 				if (((tempobj.type=="text"||tempobj.type=="textarea")&&tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&&tempobj.selectedIndex==0)) 
 				{
					pass=false;
 					break;
 			         }
       			}
 		}
 	}
 	if (!pass) 
 	{
 		shortFieldName=tempobj.name.substring(8,30).toUpperCase();
 		alert("Please make sure the "+shortFieldName+" field was properly completed.");
 		return false;
 	}
 	else
 	{
 		return true;
 	}
 }

then in the form tag put:

(Toggle Plain Text)

 <form method="blahblah" action="blahblah" name="myform" onsubmit="return checkrequired(this);">

The key is the onsubmit part....

then when your coding the form element that you want to be required do this:

(Toggle Plain Text)

 <input type="text" name="requiredMyTextElement">

what that does is any form element that has the word required in the name it will check to see if there is a value inserted in the element. I found this script on some site a while back.

fmontoya · Apr 4th, 2005, 12:11 PM

Thank you for your help. I'm going to attempt to get it to work.

Apr 4th, 2005, 11:45 AM	#1
fmontoya Newbie Join Date: Apr 2005 Posts: 2 Rep Power: 0	Need help with required form script I am trying to use a required form script for this web page: http://www.lansce.lanl.gov/reg_form.html I cant seem to get it to work. I'm not sure if I need to put it somewhere different in my source code. It is located at the bottom prior to the end of the body. Can someone please look at source and give advice. Thanks.

Apr 4th, 2005, 11:56 AM	#2
Pizentios Programming Guru Join Date: May 2004 Location: Brandon, Manitoba, Canada Posts: 2,023 Rep Power: 7	this is what i use: (Toggle Plain Text) function checkrequired(which) { var pass=true; if (document.images) { for (i=0;i<which.length;i++) { var tempobj=which.elements[i]; if (tempobj.name.substring(0,8)=="required") { if (((tempobj.type=="text"\|\|tempobj.type=="textarea")&&tempobj.value=='')\|\|(tempobj.type.toString().charAt(0)=="s"&&tempobj.selectedIndex==0)) { pass=false; break; } } } } if (!pass) { shortFieldName=tempobj.name.substring(8,30).toUpperCase(); alert("Please make sure the "+shortFieldName+" field was properly completed."); return false; } else { return true; } } function checkrequired(which) { var pass=true; if (document.images) { for (i=0;i<which.length;i++) { var tempobj=which.elements[i]; if (tempobj.name.substring(0,8)=="required") { if (((tempobj.type=="text"\|\|tempobj.type=="textarea")&&tempobj.value=='')\|\|(tempobj.type.toString().charAt(0)=="s"&&tempobj.selectedIndex==0)) { pass=false; break; } } } } if (!pass) { shortFieldName=tempobj.name.substring(8,30).toUpperCase(); alert("Please make sure the "+shortFieldName+" field was properly completed."); return false; } else { return true; } } then in the form tag put: (Toggle Plain Text) <form method="blahblah" action="blahblah" name="myform" onsubmit="return checkrequired(this);"> <form method="blahblah" action="blahblah" name="myform" onsubmit="return checkrequired(this);"> The key is the onsubmit part.... then when your coding the form element that you want to be required do this: (Toggle Plain Text) <input type="text" name="requiredMyTextElement"> <input type="text" name="requiredMyTextElement"> what that does is any form element that has the word required in the name it will check to see if there is a value inserted in the element. I found this script on some site a while back. __________________ Profanity is the one language that all programmers understand. Check out my Blog <---updated Nov 30 2007!

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Apr 4th, 2005, 12:11 PM	#3
fmontoya Newbie Join Date: Apr 2005 Posts: 2 Rep Power: 0	Thank you for your help. I'm going to attempt to get it to work.

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Programming Forums > Web Development and Design > JavaScript and Client-Side Browser Scripting

Need help with required form script