//Start Navigation Bar Script
function nextPage() {
	    pageIndex++;
	    if ( pageIndex < 10 ) { 
	    	header = header_prefix + "p000" ; 
	    } else if ( pageIndex < 100 ) {    
	   	 header = header_prefix + "p00" ; 
	    } else if ( pageIndex < 1000 ) {    
	   	 header = header_prefix + "p0" ; 
	   } else if ( pageIndex < 10000 ) {    
	   	 header = header_prefix + "p" ; 
	    }  
	    if ( pageIndex > lastPageNumber ) {   
	        pageIndex=0;
	    	parent.location.href  =header_prefix+ "cover.htm"; 
	    	  pageNumberForm.pageNumber.value="Page #";
	    }else {	    
	    	
	              parent.mainFrame.location.href=header +pageIndex+".htm";
	    	pageNumberForm.pageNumber.value=pageIndex;
	    }
	  
}


function prevPage() {
	    pageIndex--;
	
	    if ( pageIndex < 10 ) { 
	    	header = header_prefix + "p000" ; 
	    } else if ( pageIndex < 100 ) {    
	   	 header = header_prefix + "p00" ; 
	    } else if ( pageIndex < 1000 ) {    
	   	 header = header_prefix + "p0" ; 
	   } else if ( pageIndex < 10000 ) {    
	   	 header = header_prefix + "p" ; 
	    }  
	    
	    
	    if ( pageIndex < 1 ) {   
	        pageIndex=0;
	    	parent.location.href  =header_prefix+ "f0015.htm"; 
	    	  pageNumberForm.pageNumber.value="Page #";
	    }else {	    
	    	
	              parent.mainFrame.location.href=header +pageIndex+".htm";
	    	pageNumberForm.pageNumber.value=pageIndex;
	    }
	  
}

function goToPage (field, evt){
 	var keyCode = document.layers ? evt.which : document.all ? evt.keyCode : evt.keyCode;
  	var keyCode =  evt.keyCode ;
  	 
  	if (keyCode == 13){
  	    
  	     if  ((  0 <  field.value ) && ( field.value  <= lastPageNumber )  ) {
  	 
  		  pageIndex=field.value;
  	     
  		
  		 if ( pageIndex < 10 ) { 
	    		header = header_prefix + "p000" ; 
	    	} else if ( pageIndex < 100 ) {    
	   		 header = header_prefix + "p00" ; 
	    	} else if ( pageIndex < 1000 ) {    
	   		 header = header_prefix + "p0" ; 
	   	} else if ( pageIndex < 10000 ) {    
	   		 header = header_prefix + "p" ; 
	    	}  
	    	
	    		
	              parent.mainFrame.location.href=header +pageIndex+".htm";
	    	field.value=pageIndex;
	    } else { alert("Please Write Number Between 1 to " + lastPageNumber); }
  	}
}


function setPageIndex(theNumber){

pageIndex = theNumber;

}


function goToCover(){


	        pageIndex=0;
	       
	    	parent.location.href  ="text/ontogeny/cover.htm"; 
	    	
	

}


function goToHome(){


	        pageIndex=0;
	       
	    	parent.location.href  ="index.html"; 
	    	
	

}

function goToTOC(){

	        pageIndex=0;
	        parent.mainFrame.location.href  =header_prefix + "table01.htm"; 
	        parent.pageNumberForm.pageNumber.value="Page #";
}

function goToTOC2(){

	        parent.upperFrame.pageIndex=0;
	        parent.upperFrame.pageNumberForm.pageNumber.value="Page #";
}



function navPage(theNumber){          	  	     	
	parent.upperFrame.pageNumberForm.pageNumber.value = theNumber;
	parent.upperFrame.setPageIndex(theNumber)
}

//Start Table Nav Script