function switch1(div) {
var option=['panel-one','panel-two','panel-three','panel-four', 'panel-five', 'panel-six', 'panel-seven'];
var tab=['a-panel-one','a-panel-two','a-panel-three','a-panel-four', 'a-panel-five', 'a-panel-six', 'a-panel-seven'];
var adiv='a-'+div;
for(var i=0; i<option.length && i<tab.length; i++) {
if (document.getElementById(option[i]) && document.getElementById(tab[i])) {
Blockobj=document.getElementById(option[i]);
Tabsobj=document.getElementById(tab[i]);
Blockobj.style.display=(option[i]==div)? "block" : "none";

Tabsobj.className=(tab[i]==adiv)? "dm_selected" : "";
}
}
}