function is_numeric(input){
		if (input.match(/\D/) || input.match(/\s/)) return false;
		else return true;
	}

	function is_email(input){
		if ( !input.match(/^[0-9a-zA-Z_-]+[0-9a-zA-Z\._-]*@[0-9a-zA-Z\._-]+\.[a-zA-Z]{2,}$/) || input.match(/\.\./) ) return false;
		else return true;
	}

	function trySubmit()
	{
		with(document.frmCatalogRequest)
		{
	/*		if(contactFirstName.value.length == 0 || contactFirstName.value == "first name:" )
			{
				alert("Please enter your First Name.");
			}
			else if(contactLastName.value.length == 0  || contactLastName.value == "last name:" )
                        {
                                alert("Please enter your Last Name.");
                        }
	*/

			if(!is_email(contactEmail.value))
			{
				alert("Please enter your email address.");
			}
			else
			{
				submit();
			}
		}
	}
function getArgs(key) {
	var query= location.search.substring(1);
	var pairs = query.split("&");
	for(var i =0; i < pairs.length; i++) {
		var keyvalue = pairs[i].split("=");
		if (keyvalue.length !=2) continue;
		if (keyvalue[0] == key) return keyvalue[1];	


	}
	return -1; 
}