function changeTab(newTabName, formName)

{

	var formObj = "";

	if (formName) {

		formObj = document.forms[formName];

	} else {

		formObj = document.record;

	}

	var currentTabName = formObj.tab.value;



	if (currentTabName != newTabName) {

		currentTabTD = document.getElementById("td_tab_" + currentTabName);

		newTabTD = document.getElementById("td_tab_" + newTabName);

		currentTab = document.getElementById("tab_" + currentTabName);

		newTab = document.getElementById("tab_" + newTabName);



		if (currentTabTD) {

			currentTabTD.className = "adminTab";

			newTabTD.className = "adminTabActive";

		}

		currentTab.className = "adminTab";

		newTab.className = "adminTabActive";



		currentData = document.getElementById("data_" + currentTabName);

		newData = document.getElementById("data_" + newTabName);



   	currentData.style.display = "none";

   	newData.style.display = "block";



		formObj.tab.value = newTabName;

	}

}



function changeProductTab(formObj, newTabName)

{

	var currentTabName = formObj.tab.value;

	if (currentTabName != newTabName) {

		var idNames = new Array("_tab", "_td_tab", "_a_tab");

		for (var i = 0; i < idNames.length; i++) {

			var idName = idNames[i];

			currentTab = document.getElementById(currentTabName + idName);

			newTab = document.getElementById(newTabName + idName);

			if (currentTab) {

				currentTab.className = "tab";

			}

			if (newTab) {

				newTab.className = "tabActive";

			}

		}

		

		currentData = document.getElementById(currentTabName + "_data");

		newData = document.getElementById(newTabName + "_data" );



		if (currentData) {

			currentData.style.display = "none";

		}

		if (newData) {

			newData.style.display = "block";

		}



		formObj.tab.value = newTabName;

	}

}