// JavaScript Document

function chkform(f)
{
	if(f.txtURL.value == "")
	{
		alert("Please do not leave the URL Field empty");
		f.txtURL.focus();
		return false;
	}
	else if(!validateURL(f.txtURL.value))
	{
		alert("Please enter a valid url. i.e. http://www.website.com");
		f.txtURL.focus();
		return false;
	}

	if(f.txtKW.value == "")
	{
		alert("Please enter keyword to analyze");
		f.txtKW.focus();
		return false;
	}
	
	if(f.security_code.value == "")
	{
		alert("Please enter the security code");
		f.security_code.focus();
		return false;
	}

	return true;

}


function validateURL()
{
  return /^(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?$/.test(validateURL.arguments[0]);
  
}