arrTabs = new Array("our","wed","acce");
arrContactTabs = new Array("contact1","contact2","contact3");
for (i=0;i<arrTabs.length;i++) { //preload the onstates
	img = new Image();
	img.src = "images/tab_"+ arrTabs[i] +"_on.png"
}
for (i=0;i<arrContactTabs.length;i++) 
{
	img = new Image();
	img.src = "images/tab_"+ arrTabs[i] +"_on.png"
}
prevId = 0;

function swapDiv(id) {
	document.images["tab"+prevId].src = "images/tab_"+ arrTabs[prevId] +"_off.png";
	document.getElementById("div"+prevId).style.display = "none";
	document.images["tab"+id].src = "images/tab_"+ arrTabs[id] +"_on.png";
	document.getElementById("div"+id).style.display = "inline";	
	prevId = id;
}