function divsize()
{
	var clientWidth = 0, clientHeight = 0;
	
	//Non-IE
	if( typeof( window.innerWidth ) == 'number' ) {
		clientWidth = window.innerWidth;
		clientHeight = window.innerHeight;
	}
	//IE 6+ in 'standards compliant mode'
	else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) 
	{
		clientWidth = document.documentElement.clientWidth;
		clientHeight = document.documentElement.clientHeight;
	}
	//IE 4 compatible
	else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) )
	{
		clientWidth = document.body.clientWidth;
		clientHeight = document.body.clientHeight;
	}
	
	
	var contentHeight = clientHeight - 150; /*DON'T COUNT THE HEADER*/ 
	PageHeight = clientHeight;
	
	/*BROWSER IS TE GROOT. STANDAARD SITE GROOTTE*/
	if(PageHeight > 750)
	{
		document.getElementById('page_menu').style.height = "625px"; 
		document.getElementById('page_content').style.height = "600px";
		document.getElementById('page').style.height = "750px"; 
	}
	/*BROWSER IS TE KLEIN. TOON SITE KLEINST MOGELIJKE OPTIE*/
	else if(PageHeight < 670)
	{
		document.getElementById('page_menu').style.height = "540px"; 
		document.getElementById('page_content').style.height = "540px"; 
		document.getElementById('page').style.height = "680px"; 
	}
	else
	{
		document.getElementById('page_menu').style.height = (contentHeight + 15)+"px"; 
		document.getElementById('page_content').style.height = (contentHeight)+"px"; 
		document.getElementById('page').style.height = PageHeight - 10 +"px"; 
	}
}