<div class='windows'>

<div style="width:400px;" class="draggable ui-widget-content">

<p class="ui-widget-header">Primeira janela</p>

<p class="ui-widget-content" id="r1">conteudo</p>

</div>

<div style="width:400px;" class="draggable ui-widget-content">

<p class="ui-widget-header">Segunda janela</p>

<p class="ui-widget-content" id="r2">conteudo</p>

</div>

<div style="width:400px;" class="draggable ui-widget-content">

<p class="ui-widget-header">Terceira janela</p>

<p class="ui-widget-content" id="r3">conteudo</p>

</div>

</div>

3 div now my script.

$().ready(function(){

for(w=0;w<=$('.windows div').length;w++){

eval('$(".windows div:eq('+(w)+')").resizable({alsoResize:"#r'+(w+1)+'",minHeight:150,minWidth:200,maxHeight:500,maxWidth:920});');

}

});