function showHide(DIvId)
{
	var div1 = document.getElementById("content_1");
	var div2 = document.getElementById("content_2");
	var tab1 = document.getElementById("tab_1");
	var tab2 = document.getElementById("tab_2");

	if(DIvId == div1)
	{
		div1.style.display = "block";
		div2.style.display = "none";
		tab1.style.backgroundColor = "#3666cc";
		tab2.style.backgroundColor = "#79b5f1";
	}
	if(DIvId == div2)
	{
		div1.style.display = "none";
		div2.style.display = "block";
		tab1.style.backgroundColor = "#79b5f1";
		tab2.style.backgroundColor = "#3666cc";
	}
}