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

function check_email(a)	{	
	myexp = /^[0-9a-zA-Z\-\.\_]+@[0-9a-zA-Z\-]+\.[0-9a-zA-Z\-\.]+$/;
	if (a.toString().match(myexp)) return true;
	return false;
}

function checkKeys(e) {
	var keychar = String.fromCharCode(e.keyCode);
	var str="0123456789";
	if (e.keyCode == 0) {
		return true;
	} else {
		for(var i=0;i<str.length;i++) {
			if(str.indexOf(keychar.charAt(i))==-1)  {   
				return false;
			}	
		}
	}
	return true;
}

function checkDate(e) {
	var keychar = String.fromCharCode(e.keyCode);
	var str="0123456789/";
	if (e.keyCode == 0) {
		return true;
	} else {
		for(var i=0;i<str.length;i++) {
			if(str.indexOf(keychar.charAt(i))==-1)  {   
				return false;
			}	
		}
	}
	return true;
}

function checkphone(s) {
	var str="0123456789-";
	for(var i=0;i<str.length;i++)
		if(str.indexOf(s.charAt(i))==-1) 
		{  
			return false;
		}	
	return true;	
}