You can define a trim function which trims leading and trailing space in javascript by using any one of the following way:
way 1:
String.prototype.trim = function() { return this.replace(/^\s+|\s+$/g, ''); }
way 2:
function trim()
{
return this.replace(/^\s+|\s+$/g, '');
}
Following function shows how to use the trim function
function temp()
{
var str=' maninder ';
alert(str.trim());
}
you will see 'maninder' in the alert box. All the leading and trailing space are trimmed