// JavaScript Document para janelas

	function winOpen( url, name, width, height, center, param  ) {
		var strParam = "";
	
	// Centraliza janela
		if( center ) {
			var left = (screen.width - width) / 2;
			var top = (screen.availheight - height) / 2;
			strParam = "top=" + top +", left=" + left + ", ";			
		}
		
		strParam += "width=" + width + ", height=" + height +", ";
		strParam += param;
		
		return window.open( url, name, strParam );
	}