window.onload = function() { 
  var txts = document.getElementsByTagName('TEXTAREA') 
  for(var i = 0, l = txts.length; i < l; i++) {
    if(/^[0-9]+$/.test(txts[i].getAttribute("maxlength"))) { 
      var func = function() { 
        var len = parseInt(this.getAttribute("maxlength"), 10); 

        if(this.value.length > len) { 
          alert('Maximum length exceeded: ' + len); 
          this.value = this.value.substr(0, len); 
          return false; 
        } 
      }
      txts[i].onkeyup = func;
      txts[i].onblur = func;
    } 
  } 
}
$.fn.preload = function() {
    this.each(function(){
        $('<img/>')[0].src = this;
    });
}

function popitup(url,width,height) {
	newwindow=window.open(url,'name','height='+height+',width='+width);
	if (window.focus) {newwindow.focus()}
	return false;
}