//function to get Query String value
function getQueryVariable(variable) 
{
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0; i < vars.length; i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
}


//function to get the Page name
function getCurrentPage(variable) 
{
    var sPage = variable.substring(variable.lastIndexOf('/') + 1);
    return(sPage.toLowerCase());
}


//function to check if value is integer
function isInteger(NumberValue)
{
    if((/^-?\d+$/).test(NumberValue)) {
        return true;
    } 
    else {
        return false;
    }
}


//function to get left characters
function Left(str, n) {
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}


//function to get right characters
function Right(str, n) {
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}