function ShowFirstPage(formName, totalPage) {
	ShowPage(formName,1, totalPage);
}
function ShowPrevPage(formName, totalPage) {
	var v = formName.PageNo.options[formName.PageNo.selectedIndex].value;
	if(v>1)
		ShowPage(formName,--v, totalPage);
	else
		ShowPage(formName,1, totalPage);
		
}
function ShowNextPage(formName, totalPage) {
	var v = formName.PageNo.options[formName.PageNo.selectedIndex].value;
	if(v<totalPage)	
		ShowPage(formName,++v, totalPage);
	else		
		ShowPage(formName,totalPage,totalPage);
}
function ShowLastPage(formName,totalPage) {	
	ShowPage(formName,totalPage, totalPage);
}
function ShowPage(formName, pageNo, totalPage) {    
	if(document.getElementById){			   
	    for(var i = 1; i<= totalPage; i++){	       
	        document.getElementById('pg'+i).style.visibility = 'hidden';
	        document.getElementById('pg'+i).style.display='none';
	    }
	    if (document.getElementById('pg'+pageNo).style.display == 'none') {
	    	document.getElementById('pg'+pageNo).style.display = '';
	    }
	    document.getElementById('pg'+pageNo).style.visibility = 'visible';
	}else if(document.all) {
	    for(var i = 1; i<= totalPage; i++){		       
	        document.all['pg'+i].style.visibility = 'hidden';	
	        document.all['pg'+i].style.display = 'none';       
	    }	
	    if (document.all['pg'+pageNo].style.display == 'none') {
	    	document.all['pg'+pageNo].style.display = '';
	    }
	    document.all['pg'+pageNo].style.visibility = 'visible'; 
	} else if(document.layers) {
	    for(var i = 1; i<= totalPage; i++){	                   
	        document.layers['pg'+i].visibility = 'hide';
	        document.layers['pg'+i].display = 'none';        
	    }
	    if (document.layers['pg'+pageNo].display == 'none') {
	    	document.layers['pg'+pageNo].display = '';
	    }
	    document.layers['pg'+pageNo].visibility = 'show';	
	}
}