function trim(str) {

	return str.replace(/^\s+/g, '').replace(/\s+$/g, '');

}





function addOnLoadFunctions(func){

	var oOldOnLoad = window.onload;

	if (typeof window.onload != "function"){

		try{

			window.onload = func;

		}catch (e){

		}

	} else {

		window.onload = function(){

			oOldOnLoad();

			func();

		}

	}

}

function addOnUnloadFunctions(func){

	var oOldOnUnload = window.onunload;

	if (typeof window.onunload != "function"){

		try{

			window.onunload = func;

		}catch (e){

		}

	} else {

		window.onunload = function(){

			oOldOnUnload();

			func();

		}

	}

}



function getFileExtension(sFileName){

	var sRet = false;

	if( sFileName != undefined ){

		var iDotPos = sFileName.lastIndexOf(".");

		if( iDotPos > -1 ){

			sRet = sFileName.substr((iDotPos+1),sFileName.length);

		}

	}

	return sRet; 

}





function getFileName(sFileName){

	var sRet = false;

	if( sFileName != undefined ){

		var iDotPos = sFileName.lastIndexOf(".");

		if( iDotPos > -1 ){

			sRet = sFileName.substr(0,iDotPos );

		}

	}

	return sRet; 

}



function preloadImages(){

	if ( document.images ) {

	

		if ( !arguments.length  || arguments.length <= 0 ) {

			

			return false;

		}

		

		var oReturn = new Array();

		

		var j = 0;

		

		for ( var i=0; i<arguments.length; i++ ) {

			

			oReturn[j] = new Image;

			oReturn[j].src = arguments[i];

			j++;

			

		}

		

		return oReturn;

		

	} else {

		

		return false;

		

	}

}



function formatoData(obj, formato, separador){

	if(formato==undefined||formato==null){formato = 'dd/mm/aaaa';}

	if(separador==undefined||separador==null){separador = '/';}

	

	var vr = new String(obj.value);

	vr = vr.replace(/[^\d]/g,'');



	switch(formato){

		case 'dd/mm': case 'mm/aa': case 'mm/dd': case 'aa/mm': if(vr.length > 4){vr = vr.slice(0,4);}break;

		case 'dd/mm/aa': case 'mm/aaaa': case 'aa/mm/dd': case 'aaaa/mm': if(vr.length > 6){vr = vr.slice(0,6);}break;

		default: if(vr.length > 8){vr = vr.slice(0,8);}break;

	}

	var k = vr.length - 1;

	var vt = "";

	for( var i = 0; i < vr.length; i++ ){

		switch(formato){

			case 'dd/mm': case 'mm/aa': case 'mm/dd': case 'aa/mm': case 'dd/mm/aa': case 'aa/mm/dd': case 'aaaa/mm/dd': switch( i ){ case 2: case 4: vt = separador + vt; break; } break;

			case 'mm/aaaa': switch( i ){ case 4: vt = separador + vt; break; } break;

			case 'aaaa/mm': switch( i ){ case 2: vt = separador + vt; break; } break;

			case 'dd/mm/aaaa': switch( i ){ case 4: case 6: vt = separador + vt; break; } break;

		}

		vt = vr.substr(k,1) + vt;

		k--;

	}

	obj.value = vt;

}



function formataTextArea(obj, tam, msg){

	if(tam==undefined || tam==null || tam==0){tam = 255;}

	str	= obj.value;

	if(str.length > tam){

		if(msg !=undefined && msg.replace(/^\s+/g, '').replace(/\s+$/g, '') != ""){

			alert(msg.replace(/^\s+/g, '').replace(/\s+$/g, ''));

		}

		str			= str.substring(0,tam);

		obj.value	= str;

	}

}



function abrePopup(sCaminho,sLargura,sAltura){



	window.open(sCaminho,'','height='+sAltura+',width='+sLargura+',scrollbars=yes, top=25px, left=70px');

	

}