var imageFiles_1yfl7_15 = new Array();
imageFiles_1yfl7_15['0'] = new Array ('_images/1yfl7_Home.gif', '_images/1yfl7_HomeMouseover.gif');
imageFiles_1yfl7_15['1'] = new Array ('_images/1yfl7_Types_of_Surveys.gif', '_images/1yfl7_Types_of_SurveysMouseover.gif');
imageFiles_1yfl7_15['2'] = new Array ('_images/1yfl7_Services.gif', '_images/1yfl7_ServicesMouseover.gif');
imageFiles_1yfl7_15['3'] = new Array ('_images/1yfl7_Qualifications_.gif', '_images/1yfl7_Qualifications_Mouseover.gif');
imageFiles_1yfl7_15['4'] = new Array ('_images/1yfl7_FAQ.gif', '_images/1yfl7_FAQMouseover.gif');
imageFiles_1yfl7_15['5'] = new Array ('_images/1yfl7_Feedback.gif', '_images/1yfl7_FeedbackMouseover.gif');
imageFiles_1yfl7_15['6'] = new Array ('_images/1yfl7_Useful_Links.gif', '_images/1yfl7_Useful_LinksMouseover.gif');

function image_on_1yfl7_15 (position) {
   var doc = eval("document.image1yfl7_15" + position);
   doc.src = imageFiles_1yfl7_15[position][1];
}

function image_off_1yfl7_15 (position) {
   var doc = eval("document.image1yfl7_15" + position);
   doc.src = imageFiles_1yfl7_15[position][0];
}