function check_if_div_exists(Id) {
	
	  var o = document.getElementById(Id);
 	 
	  if (o) {
		  
      		return o;
		
      }
    
  	  return null;

}

function ajust_height()  {
	
	var mainHeight = document.getElementById("main_layer").offsetHeight;
	var rightDesign = 0;
	if (check_if_div_exists("Body_Flash")) {
	
		rightDesign = mainHeight - ( document.getElementById("Header").offsetHeight + document.getElementById("Body_Flash").offsetHeight + 120);
	
	}
	
	else { 
	
		rightDesign = mainHeight - ( document.getElementById("Header").offsetHeight + document.getElementById("Body_Flash_Paradise").offsetHeight + 120);
	
	}
	
	if (check_if_div_exists("Body_Gallery")) {
		
	document.getElementById("Border_Left").style.height = mainHeight - 46 + 'px';
	document.getElementById("Border_Right").style.height = mainHeight - 46 + 'px';
		
	} 
	
	else { 
	
	document.getElementById("Border_Left").style.height = mainHeight - 6 + 'px';
	document.getElementById("Border_Right").style.height = mainHeight - 6 + 'px';
	
	}
	document.getElementById("Body_Right_Design").style.height = rightDesign -1 + 'px';


	
	
	
	
}