function resize_textarea(ev){
    //if (ev.keyCode != 13) return;
    var textarea = ev.target || ev.srcElement;
    var value = textarea.value;
    var lines = 1;
	var def_lines =4;
    for (var i = 1, l = value.length; i < l; i++){
        if (value.charAt(i) == '\n') lines++;
    }
	if(lines<def_lines) lines =def_lines;
	 
     textarea.setAttribute("rows", lines);
     // window.status = lines;
}

function win_open(vi_url,vi_name) {
window.open(vi_url,vi_name, 'width=540, height=660, menubar=no, toolbar=no, scrollbars=yes');
}
function win_open2(vi_url,vi_name) {
window.open(vi_url,vi_name, 'width=870, height=800, menubar=no, toolbar=no, scrollbars=yes');
}

function win_open3(vi_url,vi_name) {
window.open(vi_url,vi_name, 'width=680, height=600, menubar=no, toolbar=no, scrollbars=yes');
}