var contentwidth= 0;
var oContainerid;
    function SetupForm(ContainerId)
    {
        window.onresize = centerform;

        oContainerid = ContainerId;

        contentwidth = (document.getElementById(oContainerid).style.width.substring(0, (document.getElementById(oContainerid).style.width.length - 2)) / 2 + 10);
    var All = ((window.innerWidth /2) - contentwidth) + "px";
    var IE = ((document.body.clientWidth / 2) - contentwidth) + "px";
    var MarginLeft = document.getElementById(oContainerid);


    if (navigator.appName != "Microsoft Internet Explorer")
    {   
    MarginLeft.style.marginLeft = All;
    }
    else
    {    
    MarginLeft.style.marginLeft = IE;
    }
    
    }
    
    function centerform(e){
    //test
    
    var All = ((window.innerWidth /2) - contentwidth) + "px";
    var IE = ((document.body.clientWidth / 2) - contentwidth) + "px";


    var MarginLeft = document.getElementById(oContainerid);
    
    if (navigator.appName != "Microsoft Internet Explorer")
    {    
    
        if ((window.innerWidth /2) < (contentwidth))
        {
        MarginLeft.style.marginLeft = 0 + "px";
        }
        else
        {
        MarginLeft.style.marginLeft = All;
        }
    }
    else
    { 
    
        if ((document.body.clientWidth / 2) < (contentwidth))
        {
        MarginLeft.style.marginLeft = 0 + "px";
        }
        else
        {
        MarginLeft.style.marginLeft = IE;
        }
    }
    }