// change the style of the tabs upon clicking
function changeTabId(currentID) {
	alert('we are in the function!');
	var tabs,i;
	// loop through all images of the document
	 tabs=document.getElementsByTagName('li');
	 for(i=0;i<tabs.length;i++) {
		 var identifier, parts, newid;
		 identifier = currentID.substring(0, 1);
		 if(tabs.id==currentID) {
			 //turn tab on
			 parts = currentID.split("-");
			 newid = part[0].part[1].'-on';
			 currentID.id=newid;
		 }else{
			 parts = tabs.split("-");
			 newid = part[0].part[1].'-off';
			 tabs.id=newid;
		 }
	 }
}