window.onload = Load;
/*window.onresize = Load;*/

function Load()
{
   var header = Thing('header');
   var footer = Thing('footer');
   var kolomlinks = Thing('kolomlinks');
   if (Thing('kolomrechts'))
   {
	   var kolomrechts = Thing('kolomrechts');
	   var contentblok = Thing('contentblok');

	   var maxColumnHeight = Math.max(kolomlinks.offsetHeight, contentblok.offsetHeight,kolomrechts.offsetHeight)

	   var siteHeight = header.offsetHeight + maxColumnHeight + footer.offsetHeight;


	   var windowHeight = measure('window').y;
	   var siteOverflow = windowHeight < siteHeight;
	   var remainingHeight = windowHeight - header.offsetHeight - footer.offsetHeight;
	   var goalHeight = 0;

		// de hoogte instellen, verschillend per browser
		goalHeight = siteOverflow? maxColumnHeight : remainingHeight;
			
		kolomlinks.style.height = goalHeight + 'px';
		contentblok.style.height = goalHeight - 20 + 'px';
		kolomrechts.style.height = goalHeight + 'px';
   } else {
	   var contentblok = Thing('contentblok');
	   

	   var maxColumnHeight = Math.max(kolomlinks.offsetHeight, contentblok.offsetHeight);

	   var siteHeight = header.offsetHeight + maxColumnHeight + footer.offsetHeight;


	   var windowHeight = measure('window').y;
	   var siteOverflow = windowHeight < siteHeight;
	   var remainingHeight = windowHeight - header.offsetHeight - footer.offsetHeight;
	   var goalHeight = 0;

		// de hoogte instellen, verschillend per browser
		goalHeight = siteOverflow? maxColumnHeight : remainingHeight;
			
		kolomlinks.style.height = goalHeight + 'px';
		contentblok.style.height = goalHeight - 20 + 'px';
		contentblok.style.width = '763px'
        var test = "<IFRAME SRC=\"script/script.html\" WIDTH=766 height=" + (goalHeight - 65) + " id=\"iframe\" frameborder=\"0\">your browser doesn't support iFrames, click <a target=\"_BLANK\" href=\"http://www.membersbenefits.nl/smartsite.htm?id=19919&MBlejeun=19919p\">here</a> to view the page, in a new window</IFRAME>"
		if (elemById("iframediv"))
		{
			elemById("iframediv").innerHTML = test;
		}
		
		}

}