// JavaScript Document

function setTop()
{
 var viewportheight;
 var wrapperDiv = document.getElementById("wrapperdiv");

    //alert( " setting top margin" );
	if (typeof window.innerHeight != 'undefined')
	{
		  viewportheight = window.innerHeight;
	}
	// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
	else if (typeof document.documentElement != 'undefined'
		 && typeof document.documentElement.clientHeight !=
		 'undefined' && document.documentElement.clientHeight != 0)
	 {
		   viewportheight = document.documentElement.clientHeight;
	 }
	 // older versions of IE
	 else
	 {
		   viewportheight = document.getElementsByTagName('body')[0].clientHeight;
	 }
	 
	 //alert( "Viewport height = " + viewportheight );
	 
	 if( (viewportheight < 680) &&  (wrapperDiv != null) )
	 {
		 //alert( "Setting wrapperDiv1" );
		 wrapperDiv.style.marginTop = "0px";
	 }
	 else if( (viewportheight < 740) &&  (wrapperDiv != null) )
	 {
		 //alert( "Setting wrapperDiv1" );
		 wrapperDiv.style.marginTop = "30px";
	 }
	 else if( wrapperDiv != null )
	 {
		 //alert( "Setting wrapperDiv2" );
		 wrapperDiv.style.marginTop = "90px";
	 }
	 else
	 {
		 //alert( "wrapperDiv not set!" );
	 }
}