function mainimg(obj){
var ranimg = new Array();
	ranimg[0]="./images/mainpicture1.bmp";
	ranimg[1]="./images/mainpicture2.bmp";
	ranimg[2]="./images/mainpicture3.bmp";
var selectnum = Math.floor(ranimg.length*Math.random());
obj.src = ranimg[Math.floor(selectnum)];

}

function mailto(){
	window.open("mailto:info@suzaki-metal.com?subject=（タイトル）&body=(有)スザキ・メタル　担当宛%0D%0A*------------------------------------------------------------* %0D%0A【お問い合わせ内容】%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A*------------------------------------------------------------* %0D%0A%0D%0A御　社　名：%0D%0A部　課　名：%0D%0A御担当者名：%0D%0A御　住　所：%0D%0Aお電話番号：%0D%0A（内線番号）%0D%0AＦＡＸ番号：%0D%0Aメールアドレス：%0D%0A ");
}
   
function pullDownMenu(obj,changeClassName,imgNo){
	obj.className = changeClassName;
	if(changeClassName == 'on'){
		switch(imgNo){
			case 0:
				document.forms[0].elements["homeImg"].src = "./images/00_pullDownMenu1.gif";
				break;
			case 1:
				document.forms[0].elements["announceImg"].src = "./images/00_pullDownMenu1.gif";
				break;
			case 2:
				document.forms[0].elements["principleImg"].src = "./images/00_pullDownMenu1.gif";
				break;
			case 3:
				document.forms[0].elements["productImg"].src = "./images/00_pullDownMenu1.gif";
				break;
			case 4:
				document.forms[0].elements["recruitImg"].src = "./images/00_pullDownMenu1.gif";
				break;
		}		
	}else if(changeClassName == 'off'){
		switch(imgNo){
			case 0:
				document.forms[0].elements["homeImg"].src = "./images/00_pullDownMenu0.gif";
				break;
			case 1:
				document.forms[0].elements["announceImg"].src = "./images/00_pullDownMenu0.gif";
				break;
			case 2:
				document.forms[0].elements["principleImg"].src = "./images/00_pullDownMenu0.gif";
				break;
			case 3:
				document.forms[0].elements["productImg"].src = "./images/00_pullDownMenu0.gif";
				break;
			case 4:
				document.forms[0].elements["recruitImg"].src = "./images/00_pullDownMenu0.gif";
				break;
		}
	}
}