function fitHeight()
{
	var agt=navigator.userAgent.toLowerCase();
	
	var is_major = parseInt(navigator.appVersion);
    var is_minor = parseFloat(navigator.appVersion);
	
	var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
	var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
	
	
	var contHeight = 0;	

 	 
    myHeight = document.getElementById('main_wrapper').offsetHeight;	
	
	sideHeight = myHeight - 494;
	
	contHeight = myHeight - 625;
	
	if (is_ie6) {
		document.getElementById('side_content').style.height = sideHeight+'px';
	} else {document.getElementById('side_content').style.minHeight = sideHeight+'px';}
	
	if (is_ie6) {
		document.getElementById('cont_top').style.height = contHeight+'px';
	} else {document.getElementById('cont_top').style.minHeight = contHeight+'px';}
	
		
}