function arrow_switch(elem){ control = document.getElementById(elem); control.src = '../../includes/site_images/module/module_arrow_over.gif'; } function arrow_switch_back(elem){ control = document.getElementById(elem); control.src = '../../includes/site_images/module/module_arrow.gif'; } function arrow_switch2(elem){ control = document.getElementById(elem); control.src = '../../includes/site_images/module/module_arrow2_over.gif'; } function arrow_switch_back2(elem){ control = document.getElementById(elem); control.src = '../../includes/site_images/module/module_arrow2.gif'; }