function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function button_on ( imgName ) {
	butOn = eval ( imgName + "_on.src" );
	document [imgName].src = butOn;
}

function button_off ( imgName ) {
	butOff = eval ( imgName + "_off.src" );
	document [imgName].src = butOff;
}

function cache_images(img_name_array){

  for(x=0;x<img_name_array.length;x++) {
    eval(img_name_array[x]+"_off=new Image();");
    eval(img_name_array[x]+"_off.src=\"images/"+img_name_array[x]+"_off.gif\";");
    eval(img_name_array[x]+"_on=new Image();");
    eval(img_name_array[x]+"_on.src=\"images/"+img_name_array[x]+"_on.gif\";");
  }


}

var popup=new Array('popup_close');

cache_images(popup);

var AlphaNum = /[^a-zA-Z0-9]/;
var validEMail = /^[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;

function checkAlphaNum( f ) {
	if( f.value.length > 0 ) {
		if( AlphaNum.test(f.value) == true ) {
			alert( f.name + ": Please only use AlphaNumeric Characters" );
			return false;
		} else return true;
	} else {
		alert( f.name + ": Field left blank" );
		return false;
	}
}

function checkForm( f ) {
	var err = new String();

	if( f.mmmEmail.value.length <= 0 )
		err += "\tEMail Address left empty\n";
	else if( validEMail.test(f.mmmEmail.value) == false )
		err += "\tIncorrect EMail address format\n";

	if( f.mmmName.value.length <= 0 )
		err += "\tName left empty\n";

	if( f.mmmMessage.value.length <= 0 )
		err += "\tMessage left empty\n";
	
	if( err.length > 0 ) {
		alert( "The following errors have been encountered:\n" + err );
		return false;
	} else return true;
}