var imgfold='images/';var loaded=0;function changeImage(ni){var my_img=new Image(0,0);my_img.src=ni;document['big_placeholder'].src=my_img.src}function LoadTabs(){tab1_off=new Image(0,0);tab1_off.src=imgfold+"tab_1_off.gif";tab1_on=new Image(0,0);tab1_on.src=imgfold+"tab_1_on.gif";tab2_off=new Image(0,0);tab2_off.src=imgfold+"tab_2_off.gif";tab2_on=new Image(0,0);tab2_on.src=imgfold+"tab_2_on.gif";tab3_off=new Image(0,0);tab3_off.src=imgfold+"tab_3_off.gif";tab3_on=new Image(0,0);tab3_on.src=imgfold+"tab_3_on.gif";tab4_off=new Image(0,0);tab4_off.src=imgfold+"tab_4_off.gif";tab4_on=new Image(0,0);tab4_on.src=imgfold+"tab_4_on.gif";loaded="1"}function changTab(tabNum){for(i=1;i<=4;i++){deactivate('tab'+i)}activate('tab'+tabNum);loadPage(''+tabNum);return false}function activate(imgName){if(loaded=="1"){document[imgName].src=eval(imgName+"_on.src")}}function deactivate(imgName){if(loaded=="1"){document[imgName].src=eval(imgName+"_off.src")}}function loadPage(tabID){frames['tab_content'].location.href='tab_'+tabID+'_content.html'}