/* Show and hide the relevant tab content on a tabbed page 
*/

var tabs=new Array("tech","econ","app","market");

function showTab(tab) {

		//debugger;

		/* swap the image header out */
		AbtSetImage("tabHeaderImg","tab_" + tab + "_on.gif");

		/* swap the tab text out */
		var span=document.getElementById("spanTabText");
		if(tab=="tech") span.innerHTML=tabText1;
		if(tab=="econ") span.innerHTML=tabText2;
		if(tab=="app") span.innerHTML=tabText3;
		if(tab=="market") span.innerHTML=tabText4;

		/* Hide all the content, showing the tab selected */
	    for (var n=0; n<tabs.length; n++) {
				
	    	var currentTab=tabs[n];	    	
	    	var div=document.getElementById(currentTab+"_content");
	    	
			if (currentTab==tab) {
				div.className="TabOn";
				}

			else { 			
				div.className="TabOff";
				}
										
				
		}

}