function SetCurrent(i)
{
    if(i == 'aTab1')
    {
        if (document.getElementById('aTab1'))
            document.getElementById('aTab1').className = "Tab1Current";
        if (document.getElementById('aTab2'))
            document.getElementById('aTab2').className = 'Tab2';
        if (document.getElementById('aTab3'))
            document.getElementById('aTab3').className = 'Tab3';
        if (document.getElementById('aTab4'))
            document.getElementById('aTab4').className = 'Tab4';
    }
    else if (i == 'aTab2')
    {
        if (document.getElementById('aTab1'))
            document.getElementById('aTab1').className = 'Tab1';
        if (document.getElementById('aTab2'))
            document.getElementById('aTab2').className = 'Tab2Current';
        if (document.getElementById('aTab3'))
            document.getElementById('aTab3').className = 'Tab3';
        if (document.getElementById('aTab4'))
            document.getElementById('aTab4').className = 'Tab4';
    }
    else if (i == 'aTab3')
    {
        if (document.getElementById('aTab1'))
            document.getElementById('aTab1').className = 'Tab1';
        if (document.getElementById('aTab2'))
            document.getElementById('aTab2').className = 'Tab2';
        if (document.getElementById('aTab3'))
            document.getElementById('aTab3').className = 'Tab3Current';
        if (document.getElementById('aTab4'))
            document.getElementById('aTab4').className = 'Tab4';
    }
    else if (i == 'aTab4')
    {
        if (document.getElementById('aTab1'))
            document.getElementById('aTab1').className = 'Tab1';
        if (document.getElementById('aTab2'))
            document.getElementById('aTab2').className = 'Tab2';
        if (document.getElementById('aTab3'))
            document.getElementById('aTab3').className = 'Tab3';
        if (document.getElementById('aTab4'))
            document.getElementById('aTab4').className = 'Tab4Current';
    }    

}   


function ShowDiv(did)
{
    HideDivs();
    setVis(did, true);
}

function HideDivs()
{
    setVis('dTab1', false);
    setVis('dTab2', false);
    setVis('dTab3', false);
    setVis('dTab4', false);
}
function setVis(id, vis, displayNone) {
    if (id != '') {
        if (displayNone == undefined || (displayNone != true && displayNone != false)) {
            displayNone = true;
        }
	    obj = MM_findObj(id);
	    if (obj == undefined) {
	        return;
	    }
	    if(document.getElementById || document.all){//all the modern browsers
		    obj.style.visibility = vis ? "visible" : "hidden";
		    if (displayNone) {
		        obj.style.display = vis ? "block" : "none";
		    }
	    }
	    else if(document.layers){//this is NS4
		    obj.visibility = vis ? "show" : "hide";
		    if (displayNone) {
    		    obj.display = vis ? "block" : "hide";
            }
	    }  
	}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}