***********************************************
*** Javascript Trim Functions               ***
*** Provided by: http://www.breakingpar.com ***
***********************************************

// //////////////////////////
// Supports Older Browsers //
// //////////////////////////


result = trim(inputString);

function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function



// ///////////////////////////////////////////////////
// Supports JavaScript 1.2+ Browsers                //
// charCodeAt()" function is part of JavaScript 1.2 // 
// ///////////////////////////////////////////////////

function Trim(Untrimmed) 
{
/*This function removes all spaces from a string
Example Trim(' Me And You ') returns 'MeAndYou'
*/
var Trimmed = ''
for (var i = 0; i < Untrimmed.length; i++) 
{
if (Untrimmed.charCodeAt(i)!=32)
{
Trimmed += Untrimmed[i]
}
}
return Trimmed
} 


// ////////////////////////////////
// Regular Expressions Example 1 //
// ////////////////////////////////

//First, leading and trailing spaces are removed from the string in a couple 
//of statements. Build a regular expression statement that will find one or 
//more starting white space characters (space, tab, form feed, or line feed), 
//then any character (\W\w ends up being anything), then one or more ending 
//white spaces after a word boundary. If that pattern is found in the input 
//string, maintain only the middle characters (the \W\w part). 

//To trim interior consecutive spaces, set up the regular expression object 
//to hold two spaces (var obj = /  /g; has 2 spaces). While 2 spaces is somewhere 
//in the string, replace all consecutive spaces with a single space. This only 
//does one pass through, so if there were 3 consecutive spaces, it would replace 
//the first 2 with a single space and end up with 2 spaces still. So the while 
//loop is necessary. 

//Note that if you only want to trim the leading and trailing spaces 
//(and not get rid of interior consecutive spaces), you can get rid 
//of the second instance where "obj" is set, and the while loop. 

function trim(value) {
   var temp = value;
   var obj = /^(\s*)([\W\w]*)(\b\s*$)/;
   if (obj.test(temp)) { temp = temp.replace(obj, '$2'); }
   var obj = /  /g;
   while (temp.match(obj)) { temp = temp.replace(obj, " "); }
   return temp;
}


// ////////////////////////////////
// Regular Expressions Example 2 //
// ////////////////////////////////

//Another way to accomplish the replacing of interior multiple spaces 
//is to replace all instances of one or more spaces with a single space. 
//So if there already is one space, it will be replaced with one space. 
//But if there are 2 or more consecutive spaces, all will be replaced with 
//1 space. This eliminates the while loop. However, if the string is just 
//a line of spaces, then this results in a single space, so an additional 
//check needs to be made. Using this method, the function becomes: 

function trim(value) {
   var temp = value;
   var obj = /^(\s*)([\W\w]*)(\b\s*$)/;
   if (obj.test(temp)) { temp = temp.replace(obj, '$2'); }
   var obj = / +/g;
   temp = temp.replace(obj, " ");
   if (temp == " ") { temp = ""; }
   return temp;
}