var Ht = "";
var offsetHeight = new Array();
var trophyHeight = new Array();
var foo = new Array();

//document.write(int);
//alert (int)

function resize_div(dir)
{
 	foo = document.getElementsByTagName("div");
	
	for (i=0;i<foo.length;i++) {
		if (foo[i].className == "case") {
			 if(document.getElementById(foo[i].id).style.zIndex == num_pages+1){
			 		if(dir=='right'){	
					
							for (j=1;j<num_pages+1;j++) {
							  if(foo[i].id==j){
								  if(j==num_pages){
									  Ht = offsetHeight[1] ;
									}
									else{
        			      Ht = offsetHeight[j+1] ;
									} 
        			  }
							}

					 }
					 if(dir=='left'){

							for (j=1;j<num_pages+1;j++) {
							  if(foo[i].id==j){
								  if(j=='1'){
									  Ht = offsetHeight[num_pages] ;
									}
									else{
        			      Ht = offsetHeight[j-1] ;
									} 
        			  }
							}				 
							
					 }
					 if(dir=='0'){
        			   Ht = offsetHeight[1] ;
        	 }
			 document.getElementById('main').style.height = Ht+'px';
			}
		}
	} 
	
}