var initBody 


function beforePrint(){ 
	initBody = document.body.innerHTML; 
	document.body.innerHTML = idPrint.innerHTML; 
} 


function afterPrint(){ 
	document.body.innerHTML = initBody; 
} 

function printArea() { 
	window.print(); 
} 


window.onbeforeprint = beforePrint; 
window.onafterprint = afterPrint;